SDDS_dataprep.c File Reference

Detailed Description

Functions for preparing SDDS data sets.

Implements utility routines used prior to writing or manipulating SDDS tables, such as allocating column flags and starting new pages.

Copyright

• (c) 2002 The University of Chicago, as Operator of Argonne National Laboratory.
• (c) 2002 The Regents of the University of California, as Operator of Los Alamos National Laboratory.

License

This file is distributed under the terms of the Software License Agreement found in the file LICENSE included with this distribution.

Authors

M. Borland, C. Saunders, R. Soliday, H. Shang

Definition in file SDDS_dataprep.c.

#include "SDDS.h"
#include "SDDS_internal.h"
#include "mdb.h"

Go to the source code of this file.

Functions
int32_t	SDDS_AllocateColumnFlags (SDDS_DATASET *SDDS_target)
int32_t	SDDS_StartPage (SDDS_DATASET *SDDS_dataset, int64_t expected_n_rows)
int32_t	SDDS_ClearPage (SDDS_DATASET *SDDS_dataset)
int32_t	SDDS_ShortenTable (SDDS_DATASET *SDDS_dataset, int64_t rows)
int32_t	SDDS_LengthenTable (SDDS_DATASET *SDDS_dataset, int64_t n_additional_rows)
int32_t	SDDS_SetParameters (SDDS_DATASET *SDDS_dataset, int32_t mode,...)
int32_t	SDDS_SetParameter (SDDS_DATASET *SDDS_dataset, int32_t mode,...)
int32_t	SDDS_SetParametersFromDoubles (SDDS_DATASET *SDDS_dataset, int32_t mode,...)
int32_t	SDDS_SetParametersFromLongDoubles (SDDS_DATASET *SDDS_dataset, int32_t mode,...)
int32_t	SDDS_SetRowValues (SDDS_DATASET *SDDS_dataset, int32_t mode, int64_t row,...)
int32_t	SDDS_SetArrayVararg (SDDS_DATASET *SDDS_dataset, char *array_name, int32_t mode, void *data_pointer,...)
	Sets the values of an array variable in the SDDS dataset using variable arguments for dimensions.
int32_t	SDDS_SetArray (SDDS_DATASET *SDDS_dataset, char *array_name, int32_t mode, void *data_pointer, int32_t *dimension)
	Sets the values of an array variable in the SDDS dataset using specified dimensions.
int32_t	SDDS_AppendToArrayVararg (SDDS_DATASET *SDDS_dataset, char *array_name, int32_t mode, void *data_pointer, int32_t elements,...)
	Appends data to an existing array variable in the SDDS dataset using variable arguments for dimensions.
int32_t	SDDS_AdvanceCounter (int32_t *counter, int32_t *max_count, int32_t n_indices)
	Advances a multi-dimensional counter based on maximum counts for each dimension.
int32_t	SDDS_SetColumn (SDDS_DATASET *SDDS_dataset, int32_t mode, void *data, int64_t rows,...)
	Sets the values for one data column in the current data table of an SDDS dataset.
int32_t	SDDS_SetColumnFromDoubles (SDDS_DATASET *SDDS_dataset, int32_t mode, double *data, int64_t rows,...)
	Sets the values for a single data column using double-precision floating-point numbers.
int32_t	SDDS_SetColumnFromLongDoubles (SDDS_DATASET *SDDS_dataset, int32_t mode, long double *data, int64_t rows,...)
	Sets the values for a single data column using long double-precision floating-point numbers.
int32_t	SDDS_SetColumnFromFloats (SDDS_DATASET *SDDS_dataset, int32_t mode, float *data, int64_t rows,...)
	Sets the values for a single data column using single-precision floating-point numbers.
int32_t	SDDS_SetColumnFromLongs (SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t *data, int64_t rows,...)
	Sets the values for a single data column using long integer numbers.

Function Documentation

SDDS_AdvanceCounter()

int32_t SDDS_AdvanceCounter	(	int32_t *	counter,
		int32_t *	max_count,
		int32_t	n_indices )

Advances a multi-dimensional counter based on maximum counts for each dimension.

This helper function increments a multi-dimensional counter array, handling carry-over for each dimension. It is typically used for iterating over multi-dimensional arrays in a nested loop fashion.

Parameters

counter	Pointer to an array of integers representing the current count in each dimension.
max_count	Pointer to an array of integers representing the maximum count for each dimension.
n_indices	The number of dimensions (indices) in the counter and max_count arrays.

Returns

Returns the index of the dimension that was incremented. If all dimensions have been fully iterated over, returns -1 to indicate completion.

See also

SDDS_SetArrayVararg, SDDS_SetArray, SDDS_AdvanceCounter

Definition at line 1497 of file SDDS_dataprep.c.

                                                                                     {
  int32_t i;
 
  for (i = n_indices - 1; i >= 0; i--)
    if (counter[i] != (max_count[i] - 1))
      break;
  if (i == -1)
    return (-1);
 
  for (i = n_indices - 1; i >= 0; i--) {
    if (counter[i] < (max_count[i] - 1)) {
      counter[i]++;
      break;
    } else {
      counter[i] = 0;
    }
  }
  return (i);
}

SDDS_AllocateColumnFlags()

int32_t SDDS_AllocateColumnFlags

(

SDDS_DATASET *

SDDS_target

)

Allocates memory for column flags and column order arrays in the specified SDDS dataset.

This function allocates memory for the column_flag and column_order arrays based on the number of columns defined in the dataset's layout. It initializes column_flag to 1 and column_order to 0 and 1 respectively.

Parameters

SDDS_target

Pointer to the SDDS_DATASET structure where column flags will be allocated.

Returns

Returns 1 on successful allocation and initialization. On failure, returns 0 and records an error message.

See also

SDDS_Malloc, SDDS_SetMemory, SDDS_SetError

Definition at line 42 of file SDDS_dataprep.c.

                                                            {
  if (SDDS_target->layout.n_columns &&
      ((!(SDDS_target->column_flag = (int32_t *)SDDS_Malloc(sizeof(int32_t) * SDDS_target->layout.n_columns)) ||
        !(SDDS_target->column_order = (int32_t *)SDDS_Malloc(sizeof(int32_t) * SDDS_target->layout.n_columns))) ||
       (!SDDS_SetMemory(SDDS_target->column_flag, SDDS_target->layout.n_columns, SDDS_LONG, (int32_t)1, (int32_t)0) || 
        !SDDS_SetMemory(SDDS_target->column_order, SDDS_target->layout.n_columns, SDDS_LONG, (int32_t)0, (int32_t)1)))) {
    SDDS_SetError("Unable to allocate column flags--memory allocation failure (SDDS_AllocateColumnFlags)");
    return 0;
  }
  return 1;
}

SDDS_AppendToArrayVararg()

int32_t SDDS_AppendToArrayVararg	(	SDDS_DATASET *	SDDS_dataset,
		char *	array_name,
		int32_t	mode,
		void *	data_pointer,
		int32_t	elements,
			... )

Appends data to an existing array variable in the SDDS dataset using variable arguments for dimensions.

This function appends additional data to a specified array within the current SDDS dataset. The elements parameter specifies the number of new elements to append. The mode parameter controls how the data is interpreted and stored. The dimensions of the array are provided as variable arguments, allowing for flexible handling of multi-dimensional arrays.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
array_name	The name of the array to append data to within the dataset.
mode	Bitwise flags that determine how the array is set. Valid flags include: SDDS_POINTER_ARRAY: Indicates that the array is a pointer array. SDDS_CONTIGUOUS_DATA: Indicates that the data is contiguous in memory.
data_pointer	Pointer to the data to be appended to the array. The data must match the type defined for the array.
elements	The number of elements to append to the array.
...	Variable arguments specifying the dimensions of the array. The number of dimensions should match the array definition.

Returns

Returns 1 on successful appending of the array data. On failure, returns 0 and records an appropriate error message.

See also

SDDS_Realloc, SDDS_CopyStringArray, SDDS_SetError, SDDS_GetArrayIndex

Definition at line 1398 of file SDDS_dataprep.c.

                                                                                                                                        {
  va_list argptr;
  int32_t index, retval, size, startIndex = 0;
  SDDS_LAYOUT *layout;
  SDDS_ARRAY *array;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_AppendToArrayVararg"))
    return (0);
  if (!(mode & SDDS_POINTER_ARRAY) && !(mode & SDDS_CONTIGUOUS_DATA)) {
    SDDS_SetError("Unable to set array--invalid mode (SDDS_AppendToArrayVararg)");
    return (0);
  }
  if ((index = SDDS_GetArrayIndex(SDDS_dataset, array_name)) < 0) {
    SDDS_SetError("Unable to set array--unknown array name given (SDDS_AppendToArrayVararg)");
    return (0);
  }
  if (!data_pointer) {
    SDDS_SetError("Unable to set array--data pointer is NULL (SDDS_AppendToArrayVararg)");
    return (0);
  }
  if (!SDDS_dataset->array) {
    SDDS_SetError("Unable to set array--internal array pointer is NULL (SDDS_AppendToArrayVararg)");
    return (0);
  }
 
  layout = &SDDS_dataset->layout;
  array = SDDS_dataset->array + index;
  if (!layout->array_definition) {
    SDDS_SetError("Unable to set array--internal array definition pointer is NULL (SDDS_AppendToArrayVararg)");
    return (0);
  }
  array->definition = layout->array_definition + index;
  if (!array->dimension && !(array->dimension = (int32_t *)SDDS_Malloc(sizeof(*array->dimension) * array->definition->dimensions))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_SetArrayVararg)");
    return (0);
  }
  if (!(array->definition->dimensions == 1 || mode & SDDS_CONTIGUOUS_DATA)) {
    SDDS_SetError("Unable to set array--append operation requires contiguous data (SDDS_AppendToArrayVararg)");
    return (0);
  }
 
  va_start(argptr, elements);
 
  /* variable arguments are dimensions */
  retval = 1;
  index = 0;
  array->elements = 1;
  do {
    if ((array->dimension[index] = va_arg(argptr, int32_t)) < 0) {
      SDDS_SetError("Unable to set array--negative dimension given (SDDS_AppendToArrayVararg)");
      retval = 0;
      break;
    }
    array->elements *= array->dimension[index];
  } while (retval == 1 && ++index < array->definition->dimensions);
  va_end(argptr);
 
  if (!retval)
    return (0);
  if (!array->elements)
    return (1);
 
  size = SDDS_type_size[array->definition->type - 1];
  if (!(array->data = SDDS_Realloc(array->data, size * array->elements))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_AppendToArrayVararg)");
    return (0);
  }
 
  startIndex = array->elements - elements;
 
  /* handle 1-d arrays and contiguous data as a special case */
  if (array->definition->dimensions == 1 || mode & SDDS_CONTIGUOUS_DATA) {
    if (array->definition->type != SDDS_STRING)
      memcpy((char *)array->data + size * startIndex, data_pointer, size * elements);
    else if (!SDDS_CopyStringArray(((char **)array->data) + startIndex, data_pointer, elements)) {
      SDDS_SetError("Unable to set array--string copy failure (SDDS_AppendToArrayVararg)");
      return (0);
    }
    return (1);
  }
 
  return (1);
}

SDDS_ClearPage()

int32_t SDDS_ClearPage

(

SDDS_DATASET *

SDDS_dataset

)

Clears the current page in the SDDS dataset, resetting all data and flags.

This function resets the current data page in the specified SDDS dataset by reinitializing column flags and order. It frees any allocated string data and zeros out the data arrays, parameters, and arrays in the dataset.

Parameters

SDDS_dataset

Pointer to the SDDS_DATASET structure whose current page will be cleared.

Returns

Returns 1 on successful clearing of the page. On failure, returns 0 and records an error message.

See also

SDDS_SetMemory, SDDS_FreeStringData, SDDS_ZeroMemory

Definition at line 194 of file SDDS_dataprep.c.

                                                   {
  SDDS_LAYOUT *layout;
  int64_t i;
  int32_t size;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_ClearPage"))
    return 0;
  layout = &SDDS_dataset->layout;
 
  if (layout->n_columns && ((SDDS_dataset->column_flag && !SDDS_SetMemory(SDDS_dataset->column_flag, layout->n_columns, SDDS_LONG, (int32_t)1, (int32_t)0)) || 
                            ((SDDS_dataset->column_order && !SDDS_SetMemory(SDDS_dataset->column_order, layout->n_columns, SDDS_LONG, (int32_t)0, (int32_t)1))))) {
    SDDS_SetError("Unable to start page--memory initialization failure (SDDS_ClearPage)");
    return 0;
  }
  SDDS_FreeStringData(SDDS_dataset);
  if (SDDS_dataset->data) {
    for (i = 0; i < layout->n_columns; i++) {
      size = SDDS_type_size[layout->column_definition[i].type - 1];
      if (SDDS_dataset->data[i])
        SDDS_ZeroMemory(SDDS_dataset->data[i], size * SDDS_dataset->n_rows_allocated);
    }
  }
  if (SDDS_dataset->parameter) {
    for (i = 0; i < layout->n_parameters; i++) {
      size = SDDS_type_size[layout->parameter_definition[i].type - 1];
      SDDS_ZeroMemory(SDDS_dataset->parameter[i], size);
    }
  }
  for (i = 0; i < layout->n_arrays; i++) {
    size = SDDS_type_size[layout->array_definition[i].type - 1];
    if (SDDS_dataset->array && SDDS_dataset->array[i].data && SDDS_dataset->array[i].elements)
      SDDS_ZeroMemory(SDDS_dataset->array[i].data, size * SDDS_dataset->array[i].elements);
  }
  return 1;
}

SDDS_LengthenTable()

int32_t SDDS_LengthenTable	(	SDDS_DATASET *	SDDS_dataset,
		int64_t	n_additional_rows )

Increases the number of allocated rows in the SDDS dataset's data table.

This function extends the allocated memory for the data table in the specified SDDS dataset by adding the specified number of additional rows. It reallocates memory for each column's data array and the row flags, initializing the newly allocated memory to zero.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure whose table will be lengthened.
n_additional_rows	The number of additional rows to allocate. If n_additional_rows is less than zero, it is treated as zero.

Returns

Returns 1 on successful reallocation and initialization. On failure, returns 0 and records an error message.

See also

SDDS_Realloc, SDDS_SetMemory, SDDS_ZeroMemory, SDDS_SetError

Definition at line 303 of file SDDS_dataprep.c.

                                                                                  {
  SDDS_LAYOUT *layout;
  int64_t i, size;
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_LengthenTable"))
    return (0);
  layout = &SDDS_dataset->layout;
#if defined(DEBUG)
  fprintf(stderr, "table size being increased from %" PRId64 " to %" PRId64 " rows\n", SDDS_dataset->n_rows_allocated, SDDS_dataset->n_rows_allocated + n_additional_rows);
#endif
  if (!SDDS_dataset->data && !(SDDS_dataset->data = (void **)calloc(layout->n_columns, sizeof(*SDDS_dataset->data)))) {
    SDDS_SetError("Unable to start page--memory allocation failure1 (SDDS_LengthenTable)");
    return (0);
  }
  if (n_additional_rows < 0)
    n_additional_rows = 0;
  for (i = 0; i < layout->n_columns; i++) {
    size = SDDS_type_size[layout->column_definition[i].type - 1];
    if (!(SDDS_dataset->data[i] = (void *)SDDS_Realloc(SDDS_dataset->data[i], (SDDS_dataset->n_rows_allocated + n_additional_rows) * size))) {
      SDDS_SetError("Unable to lengthen page--memory allocation failure2 (SDDS_LengthenTable)");
      return (0);
    }
    SDDS_ZeroMemory((char *)SDDS_dataset->data[i] + size * SDDS_dataset->n_rows_allocated, size * n_additional_rows);
  }
  if (!(SDDS_dataset->row_flag = (int32_t *)SDDS_Realloc(SDDS_dataset->row_flag, (SDDS_dataset->n_rows_allocated + n_additional_rows) * sizeof(int32_t)))) {
    SDDS_SetError("Unable to lengthen page--memory allocation failure3 (SDDS_LengthenTable)");
    return (0);
  }
  SDDS_dataset->n_rows_allocated += n_additional_rows;
 
  if (!SDDS_SetMemory(SDDS_dataset->row_flag, SDDS_dataset->n_rows_allocated, SDDS_LONG, (int32_t)1, (int32_t)0) ||
      !SDDS_SetMemory(SDDS_dataset->column_flag, SDDS_dataset->layout.n_columns, SDDS_LONG, (int32_t)1, (int32_t)0) || 
      !SDDS_SetMemory(SDDS_dataset->column_order, SDDS_dataset->layout.n_columns, SDDS_LONG, (int32_t)0, (int32_t)1)) {
    SDDS_SetError("Unable to lengthen page--memory initialization failure4 (SDDS_LengthenTable)");
    return (0);
  }
  return (1);
}

SDDS_SetArray()

int32_t SDDS_SetArray	(	SDDS_DATASET *	SDDS_dataset,
		char *	array_name,
		int32_t	mode,
		void *	data_pointer,
		int32_t *	dimension )

Sets the values of an array variable in the SDDS dataset using specified dimensions.

This function assigns data to a specified array within the current SDDS dataset. The dimensions of the array are provided as an array of integers, allowing for the assignment of multi-dimensional arrays. The mode parameter controls how the data is interpreted and stored. This function handles both pointer arrays and contiguous data.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
array_name	The name of the array to set within the dataset.
mode	Bitwise flags that determine how the array is set. Valid flags include: SDDS_POINTER_ARRAY: Indicates that the array is a pointer array. SDDS_CONTIGUOUS_DATA: Indicates that the data is contiguous in memory.
data_pointer	Pointer to the data to be assigned to the array. The data must match the type defined for the array.
dimension	Pointer to an array of integers specifying the dimensions of the array. The number of dimensions should match the array definition.

Returns

Returns 1 on successful assignment of the array data. On failure, returns 0 and records an appropriate error message.

See also

SDDS_Realloc, SDDS_CopyStringArray, SDDS_SetError, SDDS_GetArrayIndex, SDDS_ZeroMemory, SDDS_AdvanceCounter

Definition at line 1284 of file SDDS_dataprep.c.

                                                                                                                          {
  int32_t index, i, size;
  int32_t *counter = NULL;
  SDDS_LAYOUT *layout;
  SDDS_ARRAY *array;
  void *ptr;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetArray"))
    return (0);
  if (!(mode & SDDS_POINTER_ARRAY) && !(mode & SDDS_CONTIGUOUS_DATA)) {
    SDDS_SetError("Unable to set array--invalid mode (SDDS_SetArray)");
    return (0);
  }
  if ((index = SDDS_GetArrayIndex(SDDS_dataset, array_name)) < 0) {
    SDDS_SetError("Unable to set array--unknown array name given (SDDS_SetArray)");
    return (0);
  }
 
  if (!dimension) {
    SDDS_SetError("Unable to set array--dimension pointer is NULL (SDDS_SetArray)");
    return (0);
  }
  if (!SDDS_dataset->array) {
    SDDS_SetError("Unable to set array--internal array pointer is NULL (SDDS_SetArray)");
    return (0);
  }
 
  layout = &SDDS_dataset->layout;
  array = SDDS_dataset->array + index;
  if (!layout->array_definition) {
    SDDS_SetError("Unable to set array--internal array definition pointer is NULL (SDDS_SetArray)");
    return (0);
  }
  array->definition = layout->array_definition + index;
  if (!array->dimension && !(array->dimension = (int32_t *)SDDS_Malloc(sizeof(*array->dimension) * array->definition->dimensions))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_SetArray)");
    return (0);
  }
  array->elements = 1;
  for (i = 0; i < array->definition->dimensions; i++) {
    if ((array->dimension[i] = dimension[i]) < 0) {
      SDDS_SetError("Unable to set array--negative dimension specified (SDDS_SetArray)");
      return (0);
    }
    array->elements *= dimension[i];
    if (array->elements && !data_pointer) {
      SDDS_SetError("Unable to set array--data pointer is NULL (SDDS_SetArray)");
      return (0);
    }
  }
  if (!array->elements)
    return (1);
 
  size = SDDS_type_size[array->definition->type - 1];
  if (!(array->data = SDDS_Realloc(array->data, size * array->elements))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_SetArray)");
    return (0);
  }
 
  /* handle 1-d arrays and contiguous data as a special case */
  if (array->definition->dimensions == 1 || mode & SDDS_CONTIGUOUS_DATA) {
    if (array->definition->type != SDDS_STRING)
      memcpy(array->data, data_pointer, size * array->elements);
    else if (!SDDS_CopyStringArray(array->data, data_pointer, array->elements)) {
      SDDS_SetError("Unable to set array--string copy failure (SDDS_SetArrayVararg");
      return (0);
    }
    return (1);
  }
 
  if (!(counter = SDDS_Realloc(counter, sizeof(*counter) * (array->elements - 1)))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_SetArray)");
    return (0);
  }
  SDDS_ZeroMemory(counter, sizeof(*counter) * (array->elements - 1));
  index = 0;
  do {
    ptr = data_pointer;
    for (i = 0; i < array->definition->dimensions - 1; i++)
      ptr = ((void **)ptr)[counter[i]];
    if (array->definition->type != SDDS_STRING)
      memcpy((char *)array->data + size * index, ptr, size * array->dimension[i]);
    else if (!SDDS_CopyStringArray(((char **)array->data) + index, ptr, array->dimension[i])) {
      SDDS_SetError("Unable to set array--string copy failure (SDDS_SetArray)");
      return (0);
    }
    index += array->dimension[i];
  } while (SDDS_AdvanceCounter(counter, array->dimension, array->definition->dimensions - 1) != -1);
  if (counter)
    free(counter);
  return (1);
}

SDDS_SetArrayVararg()

int32_t SDDS_SetArrayVararg	(	SDDS_DATASET *	SDDS_dataset,
		char *	array_name,
		int32_t	mode,
		void *	data_pointer,
			... )

Sets the values of an array variable in the SDDS dataset using variable arguments for dimensions.

This function assigns data to a specified array within the current SDDS dataset. The dimensions of the array are provided as variable arguments, allowing for flexible assignment of multi-dimensional arrays. The mode parameter controls how the data is interpreted and stored. This function handles both pointer arrays and contiguous data.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
array_name	The name of the array to set within the dataset.
mode	Bitwise flags that determine how the array is set. Valid flags include: SDDS_POINTER_ARRAY: Indicates that the array is a pointer array. SDDS_CONTIGUOUS_DATA: Indicates that the data is contiguous in memory.
data_pointer	Pointer to the data to be assigned to the array. The data must match the type defined for the array.
...	Variable arguments specifying the dimensions of the array. The number of dimensions should match the array definition.

Returns

Returns 1 on successful assignment of the array data. On failure, returns 0 and records an appropriate error message.

See also

SDDS_Realloc, SDDS_CopyStringArray, SDDS_SetError, SDDS_GetArrayIndex, SDDS_ZeroMemory, SDDS_AdvanceCounter

Definition at line 1163 of file SDDS_dataprep.c.

                                                                                                                 {
  va_list argptr;
  int32_t index, retval, i, size;
  int32_t *counter = NULL;
  SDDS_LAYOUT *layout;
  SDDS_ARRAY *array;
  void *ptr;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetArrayVararg"))
    return (0);
  if (!(mode & SDDS_POINTER_ARRAY) && !(mode & SDDS_CONTIGUOUS_DATA)) {
    SDDS_SetError("Unable to set array--invalid mode (SDDS_SetArrayVararg)");
    return (0);
  }
  if ((index = SDDS_GetArrayIndex(SDDS_dataset, array_name)) < 0) {
    SDDS_SetError("Unable to set array--unknown array name given (SDDS_SetArrayVararg)");
    return (0);
  }
  if (!SDDS_dataset->array) {
    SDDS_SetError("Unable to set array--internal array pointer is NULL (SDDS_SetArrayVararg)");
    return (0);
  }
 
  layout = &SDDS_dataset->layout;
  array = SDDS_dataset->array + index;
  if (!layout->array_definition) {
    SDDS_SetError("Unable to set array--internal array definition pointer is NULL (SDDS_SetArrayVararg)");
    return (0);
  }
  array->definition = layout->array_definition + index;
  if (!array->dimension && !(array->dimension = (int32_t *)SDDS_Malloc(sizeof(*array->dimension) * array->definition->dimensions))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_SetArrayVararg)");
    return (0);
  }
 
  va_start(argptr, data_pointer);
 
  /* variable arguments are dimensions */
  retval = 1;
  index = 0;
  array->elements = 1;
  do {
    if ((array->dimension[index] = va_arg(argptr, int32_t)) < 0) {
      SDDS_SetError("Unable to set array--negative dimension given (SDDS_SetArrayVararg)");
      retval = 0;
      break;
    }
    array->elements *= array->dimension[index];
  } while (retval == 1 && ++index < array->definition->dimensions);
  va_end(argptr);
 
  if (!retval)
    return (0);
  if (!array->elements)
    return (1);
  if (!data_pointer) {
    SDDS_SetError("Unable to set array--data pointer is NULL (SDDS_SetArrayVararg)");
    return (0);
  }
 
  size = SDDS_type_size[array->definition->type - 1];
  if (!(array->data = SDDS_Realloc(array->data, size * array->elements))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_SetArrayVararg");
    return (0);
  }
 
  /* handle 1-d arrays and contiguous data as a special case */
  if (array->definition->dimensions == 1 || mode & SDDS_CONTIGUOUS_DATA) {
    if (array->definition->type != SDDS_STRING)
      memcpy(array->data, data_pointer, size * array->elements);
    else if (!SDDS_CopyStringArray(array->data, data_pointer, array->elements)) {
      SDDS_SetError("Unable to set array--string copy failure (SDDS_SetArrayVararg");
      return (0);
    }
    return (1);
  }
 
  if (!(counter = SDDS_Realloc(counter, sizeof(*counter) * (array->elements - 1)))) {
    SDDS_SetError("Unable to set array--allocation failure (SDDS_SetArrayVararg");
    return (0);
  }
  SDDS_ZeroMemory(counter, sizeof(*counter) * (array->elements - 1));
  index = 0;
  do {
    ptr = data_pointer;
    for (i = 0; i < array->definition->dimensions - 1; i++)
      ptr = ((void **)ptr)[counter[i]];
    if (array->definition->type != SDDS_STRING)
      memcpy((char *)array->data + size * index, ptr, size * array->dimension[i]);
    else if (!SDDS_CopyStringArray(((char **)array->data) + index, ptr, array->dimension[i])) {
      SDDS_SetError("Unable to set array--string copy failure (SDDS_SetArrayVararg");
      return (0);
    }
    index += array->dimension[i];
  } while (SDDS_AdvanceCounter(counter, array->dimension, array->definition->dimensions - 1) != -1);
  if (counter)
    free(counter);
  return (1);
}

SDDS_SetColumn()

int32_t SDDS_SetColumn	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
		void *	data,
		int64_t	rows,
			... )

Sets the values for one data column in the current data table of an SDDS dataset.

This function assigns data to a specified column within the current data table of the given SDDS dataset. The column can be identified either by its index or by its name. The mode parameter determines how the column is identified. The function ensures that the number of rows in the new column matches the existing data table.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	Bitwise flags that determine how the column is identified. Valid flags include: SDDS_SET_BY_INDEX: Identify the column by its index. SDDS_SET_BY_NAME: Identify the column by its name.
data	Pointer to an array of data to be assigned to the column. The elements of the array must be of the same type as the column type.
rows	The number of rows in the column. This should match the number of rows in the existing data table.
...	Variable arguments specifying either the column index or column name, depending on the mode parameter: If mode includes SDDS_SET_BY_INDEX: Provide an int32_t index. If mode includes SDDS_SET_BY_NAME: Provide a char* name.

Returns

Returns 1 on successful assignment of the column data. On failure, returns 0 and records an appropriate error message.

Note

The function ensures that the number of rows in the new column matches the existing data table. If the data type of the column is SDDS_STRING, it handles memory allocation and copying of strings appropriately.

See also

SDDS_SetRowValues, SDDS_SetError, SDDS_GetColumnIndex, SDDS_CopyStringArray

Definition at line 1542 of file SDDS_dataprep.c.

                                                                                                {
  va_list argptr;
  int32_t index;
  int32_t retval;
  SDDS_LAYOUT *layout;
  char *name;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetColumn"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME)) {
    SDDS_SetError("Unable to set column values--unknown mode (SDDS_SetColumn)");
    return (0);
  }
  if (rows > SDDS_dataset->n_rows_allocated) {
    SDDS_SetError("Unable to set column values--number of rows exceeds allocated memory (SDDS_SetColumn)");
    return (0);
  }
  if (!SDDS_CheckTabularData(SDDS_dataset, "SDDS_SetColumn"))
    return (0);
  if (SDDS_dataset->n_rows != 0 && SDDS_dataset->n_rows != rows) {
    SDDS_SetError("Number of rows in new column unequal to number in other columns (SDDS_SetColumn)");
    return (0);
  }
  SDDS_dataset->n_rows = rows;
  layout = &SDDS_dataset->layout;
 
  retval = 1;
  va_start(argptr, rows);
  if (mode & SDDS_SET_BY_INDEX) {
    index = va_arg(argptr, int32_t);
    if (index < 0 || index >= layout->n_columns) {
      SDDS_SetError("Unable to set column values--index out of range (SDDS_SetColumn)");
      retval = 0;
    }
  } else {
    name = va_arg(argptr, char *);
    if ((index = SDDS_GetColumnIndex(SDDS_dataset, name)) < 0) {
      SDDS_SetError0("Unable to set column values--name ");
      SDDS_SetError0(name);
      SDDS_SetError(" not recognized (SDDS_SetColumn)");
      retval = 0;
    }
  }
  va_end(argptr);
  if (!retval)
    return 0;
 
  if (layout->column_definition[index].type == SDDS_STRING) {
    if (SDDS_dataset->data[index]) {
      char *ptr;
      int64_t i;
      for (i = 0; i < rows; i++) {
        ptr = *((char **)SDDS_dataset->data[index] + i);
        if (ptr)
          free(ptr);
        *((char **)SDDS_dataset->data[index] + i) = NULL;
      }
    }
    if (!SDDS_CopyStringArray((char **)(SDDS_dataset->data[index]), (char **)data, rows)) {
      SDDS_SetError("Unable to set column--error copying string data (SDDS_SetColumn)");
      return 0;
    }
  } else
    memcpy(SDDS_dataset->data[index], data, rows * SDDS_type_size[layout->column_definition[index].type - 1]);
  return 1;
}

SDDS_SetColumnFromDoubles()

int32_t SDDS_SetColumnFromDoubles	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
		double *	data,
		int64_t	rows,
			... )

Sets the values for a single data column using double-precision floating-point numbers.

This function assigns data to a specified column within the current data table of the given SDDS dataset. The column can be identified either by its index or by its name, based on the provided mode. The data provided must be in the form of double-precision floating-point numbers (double). If the target column is of a different numeric type, the function will perform the necessary type casting. For string columns, the function converts the double values to strings with appropriate formatting.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	Bitwise flags that determine how the column is identified. Valid flags include: SDDS_SET_BY_INDEX: Identify the column by its index. SDDS_SET_BY_NAME: Identify the column by its name.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX: int32_t SDDS_SetColumnFromDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, double *data, int64_t rows, int32_t index)
• SDDS_SET_BY_NAME: int32_t SDDS_SetColumnFromDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, double *data, int64_t rows, char *name)

Parameters

data	Pointer to an array of double-precision floating-point data to be assigned to the column. The array should contain at least rows elements.
rows	The number of rows (elements) in the column to be set. Must not exceed the allocated memory for the dataset.
...	Variable arguments specifying either the column index (int32_t) or column name (char *), depending on the mode.

Returns

Returns 1 on successful assignment of the column data. On failure, returns 0 and records an appropriate error message using SDDS_SetError.

Note

• If the target column is of type SDDS_STRING, the function converts each double value to a string with a precision of up to 15 significant digits.
• The function ensures that the number of rows in the new column matches the existing data table.
• It is required to call SDDS_StartPage before setting column values.

See also

SDDS_SetColumnFromLongDoubles, SDDS_SetError, SDDS_GetColumnIndex, SDDS_CopyStringArray, SDDS_CastValue

Definition at line 1648 of file SDDS_dataprep.c.

                                                                                                             {
  va_list argptr;
  int64_t i;
  int32_t index, retval, type, size;
  SDDS_LAYOUT *layout;
  char *name;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetColumnFromDoubles"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME)) {
    SDDS_SetError("Unable to set column values--unknown mode (SDDS_SetColumnFromDoubles)");
    return (0);
  }
  if (rows > SDDS_dataset->n_rows_allocated) {
    SDDS_SetError("Unable to set column values--number of rows exceeds allocated memory (SDDS_SetColumnFromDoubles)");
    return (0);
  }
  if (!SDDS_CheckTabularData(SDDS_dataset, "SDDS_SetColumnFromDoubles"))
    return (0);
  if (SDDS_dataset->n_rows != 0 && SDDS_dataset->n_rows != rows) {
    SDDS_SetError("Number of rows in new column unequal to number in other columns (SDDS_SetColumnFromDoubles)");
    return (0);
  }
  SDDS_dataset->n_rows = rows;
  layout = &SDDS_dataset->layout;
 
  retval = 1;
  va_start(argptr, rows);
  if (mode & SDDS_SET_BY_INDEX) {
    index = va_arg(argptr, int32_t);
    if (index < 0 || index >= layout->n_columns) {
      SDDS_SetError("Unable to set column values--index out of range (SDDS_SetColumnFromDoubles)");
      retval = 0;
    }
  } else {
    name = va_arg(argptr, char *);
    if ((index = SDDS_GetColumnIndex(SDDS_dataset, name)) < 0) {
      SDDS_SetError("Unable to set column values--name not recognized (SDDS_SetColumnFromDoubles)");
      retval = 0;
    }
  }
  va_end(argptr);
  if (!retval)
    return 0;
 
  type = layout->column_definition[index].type;
  if (!SDDS_NUMERIC_TYPE(type)) {
    if (type == SDDS_STRING) {
      char **stringArray;
      if (SDDS_dataset->data[index]) {
        char *ptr;
        int64_t i;
        for (i = 0; i < rows; i++) {
          ptr = *((char **)SDDS_dataset->data[index] + i);
          if (ptr)
            free(ptr);
          *((char **)SDDS_dataset->data[index] + i) = NULL;
        }
      }
      stringArray = (char **)malloc(sizeof(char *) * rows);
      for (i = 0; i < rows; i++) {
        stringArray[i] = (char *)malloc(sizeof(char) * 40);
        sprintf(stringArray[i], "%.15lg", data[i]);
      }
      if (!SDDS_CopyStringArray((char **)(SDDS_dataset->data[index]), (char **)stringArray, rows)) {
        SDDS_SetError("Unable to set column--error copying string data (SDDS_SetColumnFromDoubles)");
        return 0;
      }
      for (i = 0; i < rows; i++) {
        free(stringArray[i]);
      }
      free(stringArray);
      return 1;
    }
    SDDS_SetError("Unable to set column--source type is nonnumeric (SDDS_SetColumnFromDoubles)");
    return 0;
  }
 
  size = SDDS_type_size[layout->column_definition[index].type - 1];
 
  if (type == SDDS_DOUBLE) {
    memcpy((char *)SDDS_dataset->data[index], (char *)data, rows * size);
    return 1;
  }
 
  for (i = 0; i < rows; i++)
    if (!SDDS_CastValue(data, i, SDDS_DOUBLE, type, (char *)(SDDS_dataset->data[index]) + i * size)) {
      SDDS_SetError("Unable to set column--cast error (SDDS_SetColumnFromDoubles)");
      return 0;
    }
 
  return 1;
}

SDDS_SetColumnFromFloats()

int32_t SDDS_SetColumnFromFloats	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
		float *	data,
		int64_t	rows,
			... )

Sets the values for a single data column using single-precision floating-point numbers.

This function assigns data to a specified column within the current data table of the given SDDS dataset. The column can be identified either by its index or by its name, based on the provided mode. The data provided must be in the form of single-precision floating-point numbers (float). If the target column is of a different numeric type, the function will perform the necessary type casting. For string columns, the function converts the float values to strings with appropriate formatting.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	Bitwise flags that determine how the column is identified. Valid flags include: SDDS_SET_BY_INDEX: Identify the column by its index. SDDS_SET_BY_NAME: Identify the column by its name.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX: int32_t SDDS_SetColumnFromFloats(SDDS_DATASET *SDDS_dataset, int32_t mode, float *data, int64_t rows, int32_t index)
• SDDS_SET_BY_NAME: int32_t SDDS_SetColumnFromFloats(SDDS_DATASET *SDDS_dataset, int32_t mode, float *data, int64_t rows, char *name)

Parameters

data	Pointer to an array of single-precision floating-point data to be assigned to the column. The array should contain at least rows elements.
rows	The number of rows (elements) in the column to be set. Must not exceed the allocated memory for the dataset.
...	Variable arguments specifying either the column index (int32_t) or column name (char *), depending on the mode.

Returns

Returns 1 on successful assignment of the column data. On failure, returns 0 and records an appropriate error message using SDDS_SetError.

Note

• If the target column is of type SDDS_STRING, the function converts each float value to a string with a precision of up to 8 significant digits.
• The function ensures that the number of rows in the new column matches the existing data table.
• It is required to call SDDS_StartPage before setting column values.

See also

SDDS_SetColumnFromDoubles, SDDS_SetError, SDDS_GetColumnIndex, SDDS_CopyStringArray, SDDS_CastValue

Definition at line 1918 of file SDDS_dataprep.c.

                                                                                                           {
  va_list argptr;
  int64_t i;
  int32_t index, retval, type, size;
  SDDS_LAYOUT *layout;
  char *name;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetColumnFromFloats"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME)) {
    SDDS_SetError("Unable to set column values--unknown mode (SDDS_SetColumnFromFloats)");
    return (0);
  }
  if (rows > SDDS_dataset->n_rows_allocated) {
    SDDS_SetError("Unable to set column values--number of rows exceeds allocated memory (SDDS_SetColumnFromFloats)");
    return (0);
  }
  if (!SDDS_CheckTabularData(SDDS_dataset, "SDDS_SetColumnFromFloats"))
    return (0);
  if (SDDS_dataset->n_rows != 0 && SDDS_dataset->n_rows != rows) {
    SDDS_SetError("Number of rows in new column unequal to number in other columns (SDDS_SetColumnFromFloats)");
    return (0);
  }
  SDDS_dataset->n_rows = rows;
  layout = &SDDS_dataset->layout;
 
  retval = 1;
  va_start(argptr, rows);
  if (mode & SDDS_SET_BY_INDEX) {
    index = va_arg(argptr, int32_t);
    if (index < 0 || index >= layout->n_columns) {
      SDDS_SetError("Unable to set column values--index out of range (SDDS_SetColumnFromFloats)");
      retval = 0;
    }
  } else {
    name = va_arg(argptr, char *);
    if ((index = SDDS_GetColumnIndex(SDDS_dataset, name)) < 0) {
      SDDS_SetError("Unable to set column values--name not recognized (SDDS_SetColumnFromFloats)");
      retval = 0;
    }
  }
  va_end(argptr);
  if (!retval)
    return 0;
 
  type = layout->column_definition[index].type;
  if (!SDDS_NUMERIC_TYPE(type)) {
    if (type == SDDS_STRING) {
      char **stringArray;
      if (SDDS_dataset->data[index]) {
        char *ptr;
        int64_t i;
        for (i = 0; i < rows; i++) {
          ptr = *((char **)SDDS_dataset->data[index] + i);
          if (ptr)
            free(ptr);
          *((char **)SDDS_dataset->data[index] + i) = NULL;
        }
      }
      stringArray = (char **)malloc(sizeof(char *) * rows);
      for (i = 0; i < rows; i++) {
        stringArray[i] = (char *)malloc(sizeof(char) * 40);
        sprintf(stringArray[i], "%.8g", data[i]);
      }
      if (!SDDS_CopyStringArray((char **)(SDDS_dataset->data[index]), (char **)stringArray, rows)) {
        SDDS_SetError("Unable to set column--error copying string data (SDDS_SetColumnFromFloats)");
        return 0;
      }
      for (i = 0; i < rows; i++) {
        free(stringArray[i]);
      }
      free(stringArray);
      return 1;
    }
    SDDS_SetError("Unable to set column--source type is nonnumeric (SDDS_SetColumnFromFloats)");
    return 0;
  }
 
  size = SDDS_type_size[layout->column_definition[index].type - 1];
 
  if (type == SDDS_FLOAT) {
    memcpy((char *)SDDS_dataset->data[index], (char *)data, rows * size);
    return 1;
  }
 
  for (i = 0; i < rows; i++)
    if (!SDDS_CastValue(data, i, SDDS_FLOAT, type, (char *)(SDDS_dataset->data[index]) + i * size)) {
      SDDS_SetError("Unable to set column--cast error (SDDS_SetColumnFromFloats)");
      return 0;
    }
 
  return 1;
}

SDDS_SetColumnFromLongDoubles()

int32_t SDDS_SetColumnFromLongDoubles	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
		long double *	data,
		int64_t	rows,
			... )

Sets the values for a single data column using long double-precision floating-point numbers.

This function assigns data to a specified column within the current data table of the given SDDS dataset. The column can be identified either by its index or by its name, based on the provided mode. The data provided must be in the form of long double-precision floating-point numbers (long double). If the target column is of a different numeric type, the function will perform the necessary type casting. For string columns, the function converts the long double values to strings with appropriate formatting.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	Bitwise flags that determine how the column is identified. Valid flags include: SDDS_SET_BY_INDEX: Identify the column by its index. SDDS_SET_BY_NAME: Identify the column by its name.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX: int32_t SDDS_SetColumnFromLongDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, long double *data, int64_t rows, int32_t index)
• SDDS_SET_BY_NAME: int32_t SDDS_SetColumnFromLongDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, long double *data, int64_t rows, char *name)

Parameters

data	Pointer to an array of long double-precision floating-point data to be assigned to the column. The array should contain at least rows elements.
rows	The number of rows (elements) in the column to be set. Must not exceed the allocated memory for the dataset.
...	Variable arguments specifying either the column index (int32_t) or column name (char *), depending on the mode.

Returns

Returns 1 on successful assignment of the column data. On failure, returns 0 and records an appropriate error message using SDDS_SetError.

Note

• If the target column is of type SDDS_STRING, the function converts each long double value to a string with a precision of up to 18 significant digits if supported, otherwise 15 digits.
• The function ensures that the number of rows in the new column matches the existing data table.
• It is required to call SDDS_StartPage before setting column values.

See also

SDDS_SetColumnFromDoubles, SDDS_SetError, SDDS_GetColumnIndex, SDDS_CopyStringArray, SDDS_CastValue

Definition at line 1781 of file SDDS_dataprep.c.

                                                                                                                      {
  va_list argptr;
  int64_t i;
  int32_t index, retval, type, size;
  SDDS_LAYOUT *layout;
  char *name;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetColumnFromLongDoubles"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME)) {
    SDDS_SetError("Unable to set column values--unknown mode (SDDS_SetColumnFromLongDoubles)");
    return (0);
  }
  if (rows > SDDS_dataset->n_rows_allocated) {
    SDDS_SetError("Unable to set column values--number of rows exceeds allocated memory (SDDS_SetColumnFromLongDoubles)");
    return (0);
  }
  if (!SDDS_CheckTabularData(SDDS_dataset, "SDDS_SetColumnFromLongDoubles"))
    return (0);
  if (SDDS_dataset->n_rows != 0 && SDDS_dataset->n_rows != rows) {
    SDDS_SetError("Number of rows in new column unequal to number in other columns (SDDS_SetColumnFromLongDoubles)");
    return (0);
  }
  SDDS_dataset->n_rows = rows;
  layout = &SDDS_dataset->layout;
 
  retval = 1;
  va_start(argptr, rows);
  if (mode & SDDS_SET_BY_INDEX) {
    index = va_arg(argptr, int32_t);
    if (index < 0 || index >= layout->n_columns) {
      SDDS_SetError("Unable to set column values--index out of range (SDDS_SetColumnFromLongDoubles)");
      retval = 0;
    }
  } else {
    name = va_arg(argptr, char *);
    if ((index = SDDS_GetColumnIndex(SDDS_dataset, name)) < 0) {
      SDDS_SetError("Unable to set column values--name not recognized (SDDS_SetColumnFromLongDoubles)");
      retval = 0;
    }
  }
  va_end(argptr);
  if (!retval)
    return 0;
 
  type = layout->column_definition[index].type;
  if (!SDDS_NUMERIC_TYPE(type)) {
    if (type == SDDS_STRING) {
      char **stringArray;
      if (SDDS_dataset->data[index]) {
        char *ptr;
        int64_t i;
        for (i = 0; i < rows; i++) {
          ptr = *((char **)SDDS_dataset->data[index] + i);
          if (ptr)
            free(ptr);
          *((char **)SDDS_dataset->data[index] + i) = NULL;
        }
      }
      stringArray = (char **)malloc(sizeof(char *) * rows);
      for (i = 0; i < rows; i++) {
        stringArray[i] = (char *)malloc(sizeof(char) * 40);
        if (LDBL_DIG == 18) {
          sprintf(stringArray[i], "%.18Lg", data[i]);
        } else {
          sprintf(stringArray[i], "%.15Lg", data[i]);
        }
      }
      if (!SDDS_CopyStringArray((char **)(SDDS_dataset->data[index]), (char **)stringArray, rows)) {
        SDDS_SetError("Unable to set column--error copying string data (SDDS_SetColumnFromLongDoubles)");
        return 0;
      }
      for (i = 0; i < rows; i++) {
        free(stringArray[i]);
      }
      free(stringArray);
      return 1;
    }
    SDDS_SetError("Unable to set column--source type is nonnumeric (SDDS_SetColumnFromLongDoubles)");
    return 0;
  }
 
  size = SDDS_type_size[layout->column_definition[index].type - 1];
 
  if (type == SDDS_LONGDOUBLE) {
    memcpy((char *)SDDS_dataset->data[index], (char *)data, rows * size);
    return 1;
  }
 
  for (i = 0; i < rows; i++)
    if (!SDDS_CastValue(data, i, SDDS_LONGDOUBLE, type, (char *)(SDDS_dataset->data[index]) + i * size)) {
      SDDS_SetError("Unable to set column--cast error (SDDS_SetColumnFromLongDoubles)");
      return 0;
    }
 
  return 1;
}

SDDS_SetColumnFromLongs()

int32_t SDDS_SetColumnFromLongs	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
		int32_t *	data,
		int64_t	rows,
			... )

Sets the values for a single data column using long integer numbers.

This function assigns data to a specified column within the current data table of the given SDDS dataset. The column can be identified either by its index or by its name, based on the provided mode. The data provided must be in the form of long integers (int32_t). If the target column is of a different numeric type, the function will perform the necessary type casting. For string columns, the function converts the integer values to strings with appropriate formatting.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	Bitwise flags that determine how the column is identified. Valid flags include: SDDS_SET_BY_INDEX: Identify the column by its index. SDDS_SET_BY_NAME: Identify the column by its name.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX: int32_t SDDS_SetColumnFromLongs(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t *data, int64_t rows, int32_t index)
• SDDS_SET_BY_NAME: int32_t SDDS_SetColumnFromLongs(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t *data, int64_t rows, char *name)

Parameters

data	Pointer to an array of long integer data to be assigned to the column. The array should contain at least rows elements.
rows	The number of rows (elements) in the column to be set. Must not exceed the allocated memory for the dataset.
...	Variable arguments specifying either the column index (int32_t) or column name (char *), depending on the mode.

Returns

Returns 1 on successful assignment of the column data. On failure, returns 0 and records an appropriate error message using SDDS_SetError.

Note

• If the target column is of type SDDS_STRING, the function converts each long integer value to a string using the sprintf function with the appropriate format specifier.
• The function ensures that the number of rows in the new column matches the existing data table.
• It is required to call SDDS_StartPage before setting column values.

See also

SDDS_SetColumnFromDoubles, SDDS_SetError, SDDS_GetColumnIndex, SDDS_CopyStringArray, SDDS_CastValue

Definition at line 2051 of file SDDS_dataprep.c.

                                                                                                            {
  va_list argptr;
  int64_t i;
  int32_t index, retval, type, size;
  SDDS_LAYOUT *layout;
  char *name;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetColumnFromLongs"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME)) {
    SDDS_SetError("Unable to set column values--unknown mode (SDDS_SetColumnFromLongs)");
    return (0);
  }
  if (rows > SDDS_dataset->n_rows_allocated) {
    SDDS_SetError("Unable to set column values--number of rows exceeds allocated memory (SDDS_SetColumnFromLongs)");
    return (0);
  }
  if (!SDDS_CheckTabularData(SDDS_dataset, "SDDS_SetColumnFromLongs"))
    return (0);
  if (SDDS_dataset->n_rows != 0 && SDDS_dataset->n_rows != rows) {
    SDDS_SetError("Number of rows in new column unequal to number in other columns (SDDS_SetColumnFromLongs)");
    return (0);
  }
  SDDS_dataset->n_rows = rows;
  layout = &SDDS_dataset->layout;
 
  retval = 1;
  va_start(argptr, rows);
  if (mode & SDDS_SET_BY_INDEX) {
    index = va_arg(argptr, int32_t);
    if (index < 0 || index >= layout->n_columns) {
      SDDS_SetError("Unable to set column values--index out of range (SDDS_SetColumnFromLongs)");
      retval = 0;
    }
  } else {
    name = va_arg(argptr, char *);
    if ((index = SDDS_GetColumnIndex(SDDS_dataset, name)) < 0) {
      SDDS_SetError("Unable to set column values--name not recognized (SDDS_SetColumnFromLongs)");
      retval = 0;
    }
  }
  va_end(argptr);
  if (!retval)
    return 0;
 
  type = layout->column_definition[index].type;
  if (!SDDS_NUMERIC_TYPE(type)) {
    if (type == SDDS_STRING) {
      char **stringArray;
      if (SDDS_dataset->data[index]) {
        char *ptr;
        int64_t i;
        for (i = 0; i < rows; i++) {
          ptr = *((char **)SDDS_dataset->data[index] + i);
          if (ptr)
            free(ptr);
          *((char **)SDDS_dataset->data[index] + i) = NULL;
        }
      }
      stringArray = (char **)malloc(sizeof(char *) * rows);
      for (i = 0; i < rows; i++) {
        stringArray[i] = (char *)malloc(sizeof(char) * 40);
        sprintf(stringArray[i], "%" PRId32, data[i]);
      }
      if (!SDDS_CopyStringArray((char **)(SDDS_dataset->data[index]), (char **)stringArray, rows)) {
        SDDS_SetError("Unable to set column--error copying string data (SDDS_SetColumnFromLongs)");
        return 0;
      }
      for (i = 0; i < rows; i++) {
        free(stringArray[i]);
      }
      free(stringArray);
      return 1;
    }
    SDDS_SetError("Unable to set column--source type is nonnumeric (SDDS_SetColumnFromLongs)");
    return 0;
  }
 
  size = SDDS_type_size[layout->column_definition[index].type - 1];
 
  if (type == SDDS_LONG) {
    memcpy((char *)SDDS_dataset->data[index], (char *)data, rows * size);
    return 1;
  }
 
  for (i = 0; i < rows; i++)
    if (!SDDS_CastValue(data, i, SDDS_LONG, type, (char *)(SDDS_dataset->data[index]) + i * size)) {
      SDDS_SetError("Unable to set column--cast error (SDDS_SetColumnFromLongs)");
      return 0;
    }
 
  return 1;
}

SDDS_SetParameter()

int32_t SDDS_SetParameter	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
			... )

Sets the value of a single parameter in the current data table of an SDDS dataset.

This function assigns a value to a specified parameter in the current data table of the given SDDS dataset. It must be preceded by a call to SDDS_StartPage to initialize the table. The parameter to be set can be identified either by its index or by its name. The value can be passed either by value or by reference, depending on the specified mode.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	A bitwise combination of the following constants: SDDS_SET_BY_INDEX: Identify the parameter by its index. SDDS_SET_BY_NAME: Identify the parameter by its name. SDDS_PASS_BY_VALUE: Pass the parameter value by value. SDDS_PASS_BY_REFERENCE: Pass the parameter value by reference.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.
• Exactly one of SDDS_PASS_BY_VALUE or SDDS_PASS_BY_REFERENCE must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParameter(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index, value)
• SDDS_SET_BY_INDEX + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParameter(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index, void *data)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParameter(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name, value)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParameter(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name, void *data)

Note: For parameters of type SDDS_STRING, passing by value means passing a char *, whereas passing by reference means passing a char **.

Returns

Returns 1 on successful assignment of the parameter value. On failure, returns 0 and records an appropriate error message.

See also

SDDS_StartPage, SDDS_SetError, SDDS_GetParameterIndex, SDDS_CopyString

Definition at line 539 of file SDDS_dataprep.c.

                                                                         {
  va_list argptr;
  int32_t index;
  SDDS_LAYOUT *layout;
  char *name;
  char s[SDDS_MAXLINE];
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetParameters"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME) || !(mode & SDDS_PASS_BY_VALUE || mode & SDDS_PASS_BY_REFERENCE)) {
    SDDS_SetError("Unable to set parameter values--unknown mode (SDDS_SetParameters)");
    return (0);
  }
 
  va_start(argptr, mode);
  layout = &SDDS_dataset->layout;
 
  /* variable arguments are pairs of (index, value), where index is a int32_t integer */
  if (mode & SDDS_SET_BY_INDEX) {
    if ((index = va_arg(argptr, int32_t)) == -1) {
      SDDS_SetError("Unable to set parameter values--index is null (SDDS_SetParameter)");
      va_end(argptr);
      return (0);
    }
    if (index < 0 || index >= layout->n_parameters) {
      SDDS_SetError("Unable to set parameter values--index out of range (SDDS_SetParameter)");
      va_end(argptr);
      return (0);
    }
  } else {
    if ((name = va_arg(argptr, char *)) == NULL) {
      SDDS_SetError("Unable to set parameter values--name is null (SDDS_SetParameter)");
      va_end(argptr);
      return (0);
    }
    if ((index = SDDS_GetParameterIndex(SDDS_dataset, name)) < 0) {
      sprintf(s, "Unable to set parameter values--name %s not recognized (SDDS_SetParameter)", name);
      SDDS_SetError(s);
      va_end(argptr);
      return (0);
    }
  }
  switch (layout->parameter_definition[index].type) {
  case SDDS_SHORT:
    if (mode & SDDS_PASS_BY_VALUE)
      *((short *)SDDS_dataset->parameter[index]) = (short)va_arg(argptr, int);
    else
      *((short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, short *));
    break;
  case SDDS_USHORT:
    if (mode & SDDS_PASS_BY_VALUE)
      *((unsigned short *)SDDS_dataset->parameter[index]) = (unsigned short)va_arg(argptr, unsigned int);
    else
      *((unsigned short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, unsigned short *));
    break;
  case SDDS_LONG:
    if (mode & SDDS_PASS_BY_VALUE)
      *((int32_t *)SDDS_dataset->parameter[index]) = (int32_t)va_arg(argptr, int32_t);
    else
      *((int32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, int32_t *));
    break;
  case SDDS_ULONG:
    if (mode & SDDS_PASS_BY_VALUE)
      *((uint32_t *)SDDS_dataset->parameter[index]) = (uint32_t)va_arg(argptr, uint32_t);
    else
      *((uint32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, uint32_t *));
    break;
  case SDDS_LONG64:
    if (mode & SDDS_PASS_BY_VALUE)
      *((int64_t *)SDDS_dataset->parameter[index]) = (int64_t)va_arg(argptr, int64_t);
    else
      *((int64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, int64_t *));
    break;
  case SDDS_ULONG64:
    if (mode & SDDS_PASS_BY_VALUE)
      *((uint64_t *)SDDS_dataset->parameter[index]) = (uint64_t)va_arg(argptr, uint64_t);
    else
      *((uint64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, uint64_t *));
    break;
  case SDDS_FLOAT:
    if (mode & SDDS_PASS_BY_VALUE)
      *((float *)SDDS_dataset->parameter[index]) = (float)va_arg(argptr, double);
    else
      *((float *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, float *));
    break;
  case SDDS_DOUBLE:
    if (mode & SDDS_PASS_BY_VALUE)
      *((double *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
    else
      *((double *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
    break;
  case SDDS_LONGDOUBLE:
    if (mode & SDDS_PASS_BY_VALUE)
      *((long double *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
    else
      *((long double *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
    break;
  case SDDS_STRING:
    if (*(char **)SDDS_dataset->parameter[index])
      free(*(char **)SDDS_dataset->parameter[index]);
    if (mode & SDDS_PASS_BY_VALUE) {
      if (!SDDS_CopyString((char **)SDDS_dataset->parameter[index], va_arg(argptr, char *))) {
        SDDS_SetError("Unable to set string parameter value--allocation failure (SDDS_SetParameters)");
        va_end(argptr);
        return (0);
      }
    } else {
      if (!SDDS_CopyString((char **)SDDS_dataset->parameter[index], *(va_arg(argptr, char **)))) {
        SDDS_SetError("Unable to set string parameter value--allocation failure (SDDS_SetParameters)");
        va_end(argptr);
        return (0);
      }
    }
    break;
  case SDDS_CHARACTER:
    if (mode & SDDS_PASS_BY_VALUE)
      *((char *)SDDS_dataset->parameter[index]) = (char)va_arg(argptr, int);
    else
      *((char *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, char *));
    break;
  default:
    SDDS_SetError("Unknown data type encountered (SDDS_SetParameters)");
    va_end(argptr);
    return (0);
  }
  va_end(argptr);
  return (1);
}

SDDS_SetParameters()

int32_t SDDS_SetParameters	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
			... )

Sets the values of one or more parameters for the current data table in an SDDS dataset.

This function assigns values to parameters in the current data table of the specified SDDS dataset. It must be preceded by a call to SDDS_StartPage to initialize the table. The function can be called multiple times to set parameters for different tables, but SDDS_WriteTable should be used to write each table to disk.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	A bitwise combination of the following constants: SDDS_SET_BY_INDEX: Specify parameters by their index. SDDS_SET_BY_NAME: Specify parameters by their name. SDDS_PASS_BY_VALUE: Pass parameter values by value. SDDS_PASS_BY_REFERENCE: Pass parameter values by reference.

Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set to indicate how parameters are identified. Additionally, exactly one of SDDS_PASS_BY_VALUE or SDDS_PASS_BY_REFERENCE must be set to indicate how parameter values are provided.

The syntax for the four possible mode combinations is as follows:

• SDDS_SET_BY_INDEX + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParameters(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index1, value1, int32_t index2, value2, ..., -1)
• SDDS_SET_BY_INDEX + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParameters(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index1, void *data1, int32_t index2, void *data2, ..., -1)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParameters(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name1, value1, char *name2, value2, ..., NULL)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParameters(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name1, void *data1, char *name2, void *data2, ..., NULL)

Note: For parameters of type SDDS_STRING, passing by value means passing a char *, whereas passing by reference means passing a char **.

Returns

Returns 1 on success. On failure, returns 0 and records an error message.

See also

SDDS_StartPage, SDDS_WriteTable, SDDS_SetError, SDDS_GetParameterIndex, va_start, va_arg, va_end

Definition at line 375 of file SDDS_dataprep.c.

                                                                          {
  va_list argptr;
  int32_t index, retval;
  SDDS_LAYOUT *layout;
  char *name;
  char s[SDDS_MAXLINE];
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetParameters"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME) || !(mode & SDDS_PASS_BY_VALUE || mode & SDDS_PASS_BY_REFERENCE)) {
    SDDS_SetError("Unable to set parameter values--unknown mode (SDDS_SetParameters)");
    return (0);
  }
 
  va_start(argptr, mode);
  layout = &SDDS_dataset->layout;
 
  /* variable arguments are pairs of (index, value), where index is a int32_t integer */
  retval = -1;
  do {
    if (mode & SDDS_SET_BY_INDEX) {
      if ((index = va_arg(argptr, int32_t)) == -1) {
        retval = 1;
        break;
      }
      if (index < 0 || index >= layout->n_parameters) {
        SDDS_SetError("Unable to set parameter values--index out of range (SDDS_SetParameters)");
        retval = 0;
        break;
      }
    } else {
      if ((name = va_arg(argptr, char *)) == NULL) {
        retval = 1;
        break;
      }
      if ((index = SDDS_GetParameterIndex(SDDS_dataset, name)) < 0) {
        sprintf(s, "Unable to set parameter values--name %s not recognized (SDDS_SetParameters)", name);
        SDDS_SetError(s);
        retval = 0;
        break;
      }
    }
    switch (layout->parameter_definition[index].type) {
    case SDDS_SHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((short *)SDDS_dataset->parameter[index]) = (short)va_arg(argptr, int);
      else
        *((short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, short *));
      break;
    case SDDS_USHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((unsigned short *)SDDS_dataset->parameter[index]) = (unsigned short)va_arg(argptr, unsigned int);
      else
        *((unsigned short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, unsigned short *));
      break;
    case SDDS_LONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *((int32_t *)SDDS_dataset->parameter[index]) = (int32_t)va_arg(argptr, int32_t);
      else
        *((int32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, int32_t *));
      break;
    case SDDS_ULONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *((uint32_t *)SDDS_dataset->parameter[index]) = (uint32_t)va_arg(argptr, uint32_t);
      else
        *((uint32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, uint32_t *));
      break;
    case SDDS_LONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *((int64_t *)SDDS_dataset->parameter[index]) = (int64_t)va_arg(argptr, int64_t);
      else
        *((int64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, int64_t *));
      break;
    case SDDS_ULONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *((uint64_t *)SDDS_dataset->parameter[index]) = (uint64_t)va_arg(argptr, uint64_t);
      else
        *((uint64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, uint64_t *));
      break;
    case SDDS_FLOAT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((float *)SDDS_dataset->parameter[index]) = (float)va_arg(argptr, double);
      else
        *((float *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, float *));
      break;
    case SDDS_DOUBLE:
      if (mode & SDDS_PASS_BY_VALUE)
        *((double *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((double *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_LONGDOUBLE:
      if (mode & SDDS_PASS_BY_VALUE)
        *((long double *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((long double *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_STRING:
      if (*(char **)SDDS_dataset->parameter[index])
        free(*(char **)SDDS_dataset->parameter[index]);
      if (mode & SDDS_PASS_BY_VALUE) {
        if (!SDDS_CopyString((char **)SDDS_dataset->parameter[index], va_arg(argptr, char *))) {
          SDDS_SetError("Unable to set string parameter value--allocation failure (SDDS_SetParameters)");
          retval = 0;
        }
      } else {
        if (!SDDS_CopyString((char **)SDDS_dataset->parameter[index], *(va_arg(argptr, char **)))) {
          SDDS_SetError("Unable to set string parameter value--allocation failure (SDDS_SetParameters)");
          retval = 0;
        }
      }
      break;
    case SDDS_CHARACTER:
      if (mode & SDDS_PASS_BY_VALUE)
        *((char *)SDDS_dataset->parameter[index]) = (char)va_arg(argptr, int);
      else
        *((char *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, char *));
      break;
    default:
      SDDS_SetError("Unknown data type encountered (SDDS_SetParameters)");
      retval = 0;
    }
  } while (retval == -1);
  va_end(argptr);
  return (retval);
}

SDDS_SetParametersFromDoubles()

int32_t SDDS_SetParametersFromDoubles	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
			... )

Sets the values of one or more parameters in the current data table of an SDDS dataset using double-precision floating-point numbers.

This function assigns double-precision floating-point values to specified parameters in the current data table of the given SDDS dataset. It must be preceded by a call to SDDS_StartPage to initialize the table. Parameters can be identified either by their index or by their name. The values can be passed either by value or by reference, depending on the specified mode.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	A bitwise combination of the following constants: SDDS_SET_BY_INDEX: Identify parameters by their indices. SDDS_SET_BY_NAME: Identify parameters by their names. SDDS_PASS_BY_VALUE: Pass parameter values by value. SDDS_PASS_BY_REFERENCE: Pass parameter values by reference.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.
• Exactly one of SDDS_PASS_BY_VALUE or SDDS_PASS_BY_REFERENCE must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParametersFromDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index, double value)
• SDDS_SET_BY_INDEX + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParametersFromDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index, double *data)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParametersFromDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name, double value)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParametersFromDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name, double *data)

Note: For parameters of type SDDS_STRING, setting values using this function is not supported and will result in an error.

Returns

Returns 1 on successful assignment of all specified parameter values. On failure, returns 0 and records an appropriate error message.

See also

SDDS_StartPage, SDDS_SetError, SDDS_GetParameterIndex

Definition at line 703 of file SDDS_dataprep.c.

                                                                                     {
  va_list argptr;
  int32_t index, retval;
  SDDS_LAYOUT *layout;
  char *name;
  char s[SDDS_MAXLINE];
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetParametersFromDoubles"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME) || !(mode & SDDS_PASS_BY_VALUE || mode & SDDS_PASS_BY_REFERENCE)) {
    SDDS_SetError("Unable to set parameter values--unknown mode (SDDS_SetParametersFromDoubles)");
    return (0);
  }
 
  va_start(argptr, mode);
  layout = &SDDS_dataset->layout;
 
  /* variable arguments are pairs of (index, value), where index is a int32_t integer */
  retval = -1;
  do {
    if (mode & SDDS_SET_BY_INDEX) {
      if ((index = va_arg(argptr, int32_t)) == -1) {
        retval = 1;
        break;
      }
      if (index < 0 || index >= layout->n_parameters) {
        sprintf(s, "Unable to set parameter values--index %" PRId32 " out of range [%d, %" PRId32 "] (SDDS_SetParametersFromDoubles)", index, 0, layout->n_parameters);
        SDDS_SetError(s);
        retval = 0;
        break;
      }
    } else {
      if ((name = va_arg(argptr, char *)) == NULL) {
        retval = 1;
        break;
      }
      if ((index = SDDS_GetParameterIndex(SDDS_dataset, name)) < 0) {
        sprintf(s, "Unable to set parameter values--name %s not recognized (SDDS_SetParametersFromDoubles)", name);
        SDDS_SetError(s);
        retval = 0;
        break;
      }
    }
    switch (layout->parameter_definition[index].type) {
    case SDDS_SHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((short *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_USHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((unsigned short *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((unsigned short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_LONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *((int32_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((int32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_ULONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *((uint32_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((uint32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_LONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *((int64_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((int64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_ULONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *((uint64_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((uint64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_FLOAT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((float *)SDDS_dataset->parameter[index]) = (float)va_arg(argptr, double);
      else
        *((float *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_DOUBLE:
      if (mode & SDDS_PASS_BY_VALUE)
        *((double *)SDDS_dataset->parameter[index]) = va_arg(argptr, double);
      else
        *((double *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, double *));
      break;
    case SDDS_STRING:
    case SDDS_CHARACTER:
      SDDS_SetError("Nonnumeric data type encountered (SDDS_SetParametersFromDoubles)");
      retval = 0;
      break;
    default:
      SDDS_SetError("Unknown data type encountered (SDDS_SetParametersFromDoubles)");
      retval = 0;
    }
  } while (retval == -1);
  va_end(argptr);
  return (retval);
}

SDDS_SetParametersFromLongDoubles()

int32_t SDDS_SetParametersFromLongDoubles	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
			... )

Sets the values of one or more parameters in the current data table of an SDDS dataset using long double-precision floating-point numbers.

This function assigns long double-precision floating-point values to specified parameters in the current data table of the given SDDS dataset. It must be preceded by a call to SDDS_StartPage to initialize the table. Parameters can be identified either by their index or by their name. The values can be passed either by value or by reference, depending on the specified mode.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	A bitwise combination of the following constants: SDDS_SET_BY_INDEX: Identify parameters by their indices. SDDS_SET_BY_NAME: Identify parameters by their names. SDDS_PASS_BY_VALUE: Pass parameter values by value. SDDS_PASS_BY_REFERENCE: Pass parameter values by reference.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.
• Exactly one of SDDS_PASS_BY_VALUE or SDDS_PASS_BY_REFERENCE must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParametersFromLongDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index, long double value)
• SDDS_SET_BY_INDEX + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParametersFromLongDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, int32_t index, long double *data)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_VALUE: int32_t SDDS_SetParametersFromLongDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name, long double value)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetParametersFromLongDoubles(SDDS_DATASET *SDDS_dataset, int32_t mode, char *name, long double *data)

Note: For parameters of type SDDS_STRING, setting values using this function is not supported and will result in an error.

Returns

Returns 1 on successful assignment of all specified parameter values. On failure, returns 0 and records an appropriate error message.

See also

SDDS_StartPage, SDDS_SetError, SDDS_GetParameterIndex

Definition at line 844 of file SDDS_dataprep.c.

                                                                                         {
  va_list argptr;
  int32_t index, retval;
  SDDS_LAYOUT *layout;
  char *name;
  char s[SDDS_MAXLINE];
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetParametersFromLongDoubles"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME) || !(mode & SDDS_PASS_BY_VALUE || mode & SDDS_PASS_BY_REFERENCE)) {
    SDDS_SetError("Unable to set parameter values--unknown mode (SDDS_SetParametersFromLongDoubles)");
    return (0);
  }
 
  va_start(argptr, mode);
  layout = &SDDS_dataset->layout;
 
  /* variable arguments are pairs of (index, value), where index is a int32_t integer */
  retval = -1;
  do {
    if (mode & SDDS_SET_BY_INDEX) {
      if ((index = va_arg(argptr, int32_t)) == -1) {
        retval = 1;
        break;
      }
      if (index < 0 || index >= layout->n_parameters) {
        sprintf(s, "Unable to set parameter values--index %" PRId32 " out of range [%d, %" PRId32 "] (SDDS_SetParametersFromLongDoubles)", index, 0, layout->n_parameters);
        SDDS_SetError(s);
        retval = 0;
        break;
      }
    } else {
      if ((name = va_arg(argptr, char *)) == NULL) {
        retval = 1;
        break;
      }
      if ((index = SDDS_GetParameterIndex(SDDS_dataset, name)) < 0) {
        sprintf(s, "Unable to set parameter values--name %s not recognized (SDDS_SetParametersFromLongDoubles)", name);
        SDDS_SetError(s);
        retval = 0;
        break;
      }
    }
    switch (layout->parameter_definition[index].type) {
    case SDDS_SHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((short *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_USHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((unsigned short *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((unsigned short *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_LONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *((int32_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((int32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_ULONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *((uint32_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((uint32_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_LONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *((int64_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((int64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_ULONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *((uint64_t *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((uint64_t *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_FLOAT:
      if (mode & SDDS_PASS_BY_VALUE)
        *((float *)SDDS_dataset->parameter[index]) = (float)va_arg(argptr, long double);
      else
        *((float *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_DOUBLE:
      if (mode & SDDS_PASS_BY_VALUE)
        *((double *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((double *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_LONGDOUBLE:
      if (mode & SDDS_PASS_BY_VALUE)
        *((long double *)SDDS_dataset->parameter[index]) = va_arg(argptr, long double);
      else
        *((long double *)SDDS_dataset->parameter[index]) = *(va_arg(argptr, long double *));
      break;
    case SDDS_STRING:
    case SDDS_CHARACTER:
      SDDS_SetError("Nonnumeric data type encountered (SDDS_SetParametersFromLongDoubles)");
      retval = 0;
      break;
    default:
      SDDS_SetError("Unknown data type encountered (SDDS_SetParametersFromLongDoubles)");
      retval = 0;
    }
  } while (retval == -1);
  va_end(argptr);
  return (retval);
}

SDDS_SetRowValues()

int32_t SDDS_SetRowValues	(	SDDS_DATASET *	SDDS_dataset,
		int32_t	mode,
		int64_t	row,
			... )

Sets the values of one or more columns in a specified row of the current data table of an SDDS dataset.

This function assigns values to specified columns in a particular row of the current data table within the given SDDS dataset. It must be preceded by a call to SDDS_StartPage to initialize the table. Columns can be identified either by their index or by their name. The values can be passed either by value or by reference, depending on the specified mode.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
mode	A bitwise combination of the following constants: SDDS_SET_BY_INDEX: Identify columns by their indices. SDDS_SET_BY_NAME: Identify columns by their names. SDDS_PASS_BY_VALUE: Pass column values by value. SDDS_PASS_BY_REFERENCE: Pass column values by reference.

Mode Requirements:

• Exactly one of SDDS_SET_BY_INDEX or SDDS_SET_BY_NAME must be set.
• Exactly one of SDDS_PASS_BY_VALUE or SDDS_PASS_BY_REFERENCE must be set.

Syntax Based on Mode Combination:

• SDDS_SET_BY_INDEX + SDDS_PASS_BY_VALUE: int32_t SDDS_SetRowValues(SDDS_DATASET *SDDS_dataset, int32_t mode, int64_t row, int32_t index, value, ..., -1)
• SDDS_SET_BY_INDEX + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetRowValues(SDDS_DATASET *SDDS_dataset, int32_t mode, int64_t row, int32_t index, void *data, ..., -1)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_VALUE: int32_t SDDS_SetRowValues(SDDS_DATASET *SDDS_dataset, int32_t mode, int64_t row, char *name, value, ..., NULL)
• SDDS_SET_BY_NAME + SDDS_PASS_BY_REFERENCE: int32_t SDDS_SetRowValues(SDDS_DATASET *SDDS_dataset, int32_t mode, int64_t row, char *name, void *data, ..., NULL)

Note: For columns of type SDDS_STRING, passing by value means passing a char *, whereas passing by reference means passing a char **.

Parameters

row	The row number in the data table where the column values will be set. Row numbering starts from 1.

Returns

Returns 1 on successful assignment of all specified column values. On failure, returns 0 and records an appropriate error message.

See also

SDDS_StartPage, SDDS_SetError, SDDS_GetColumnIndex, SDDS_CopyString

Definition at line 994 of file SDDS_dataprep.c.

                                                                                      {
  va_list argptr;
  int32_t index;
  int32_t retval;
  SDDS_LAYOUT *layout;
  char *name;
  char buffer[200];
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_SetRowValues"))
    return (0);
  if (!(mode & SDDS_SET_BY_INDEX || mode & SDDS_SET_BY_NAME) || !(mode & SDDS_PASS_BY_VALUE || mode & SDDS_PASS_BY_REFERENCE)) {
    SDDS_SetError("Unable to set column values--unknown mode (SDDS_SetRowValues)");
    return (0);
  }
  if (!SDDS_CheckTabularData(SDDS_dataset, "SDDS_SetRowValues"))
    return (0);
  row -= SDDS_dataset->first_row_in_mem;
  if (row >= SDDS_dataset->n_rows_allocated) {
    sprintf(buffer, "Unable to set column values--row number (%" PRId64 ") exceeds exceeds allocated memory (%" PRId64 ") (SDDS_SetRowValues)", row, SDDS_dataset->n_rows_allocated);
    SDDS_SetError(buffer);
    return (0);
  }
  if (row > SDDS_dataset->n_rows - 1)
    SDDS_dataset->n_rows = row + 1;
 
  va_start(argptr, row);
  layout = &SDDS_dataset->layout;
 
  /* variable arguments are pairs of (index, value), where index is a int32_t integer */
  retval = -1;
#ifdef DEBUG
  fprintf(stderr, "setting row %" PRId64 " (mem slot %" PRId64 ")\n", row + SDDS_dataset->first_row_in_mem, row);
#endif
  do {
    if (mode & SDDS_SET_BY_INDEX) {
      if ((index = va_arg(argptr, int32_t)) == -1) {
        retval = 1;
        break;
      }
      if (index < 0 || index >= layout->n_columns) {
        SDDS_SetError("Unable to set column values--index out of range (SDDS_SetRowValues)");
        retval = 0;
        break;
      }
#ifdef DEBUG
      fprintf(stderr, "Setting values for column #%" PRId32 "\n", index);
#endif
    } else {
      if ((name = va_arg(argptr, char *)) == NULL) {
        retval = 1;
        break;
      }
#ifdef DEBUG
      fprintf(stderr, "Setting values for column %s\n", name);
#endif
      if ((index = SDDS_GetColumnIndex(SDDS_dataset, name)) < 0) {
        SDDS_SetError("Unable to set column values--name not recognized (SDDS_SetRowValues)");
        retval = 0;
        break;
      }
    }
    switch (layout->column_definition[index].type) {
    case SDDS_SHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((short *)SDDS_dataset->data[index]) + row) = (short)va_arg(argptr, int);
      else
        *(((short *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, short *));
      break;
    case SDDS_USHORT:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((unsigned short *)SDDS_dataset->data[index]) + row) = (unsigned short)va_arg(argptr, unsigned int);
      else
        *(((unsigned short *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, unsigned short *));
      break;
    case SDDS_LONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((int32_t *)SDDS_dataset->data[index]) + row) = va_arg(argptr, int32_t);
      else
        *(((int32_t *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, int32_t *));
      break;
    case SDDS_ULONG:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((uint32_t *)SDDS_dataset->data[index]) + row) = va_arg(argptr, uint32_t);
      else
        *(((uint32_t *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, uint32_t *));
      break;
    case SDDS_LONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((int64_t *)SDDS_dataset->data[index]) + row) = va_arg(argptr, int64_t);
      else
        *(((int64_t *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, int64_t *));
      break;
    case SDDS_ULONG64:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((uint64_t *)SDDS_dataset->data[index]) + row) = va_arg(argptr, uint64_t);
      else
        *(((uint64_t *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, uint64_t *));
      break;
    case SDDS_FLOAT:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((float *)SDDS_dataset->data[index]) + row) = (float)va_arg(argptr, double);
      else
        *(((float *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, float *));
      break;
    case SDDS_DOUBLE:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((double *)SDDS_dataset->data[index]) + row) = va_arg(argptr, double);
      else
        *(((double *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, double *));
      break;
    case SDDS_LONGDOUBLE:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((long double *)SDDS_dataset->data[index]) + row) = va_arg(argptr, long double);
      else
        *(((long double *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, long double *));
      break;
    case SDDS_STRING:
      if (((char **)SDDS_dataset->data[index])[row]) {
        free(((char **)SDDS_dataset->data[index])[row]);
        ((char **)SDDS_dataset->data[index])[row] = NULL;
      }
      if (mode & SDDS_PASS_BY_VALUE) {
        if (!SDDS_CopyString((char **)SDDS_dataset->data[index] + row, va_arg(argptr, char *))) {
          SDDS_SetError("Unable to set string column value--allocation failure (SDDS_SetRowValues)");
          retval = 0;
        }
      } else {
        if (!SDDS_CopyString((char **)SDDS_dataset->data[index] + row, *(va_arg(argptr, char **)))) {
          SDDS_SetError("Unable to set string column value--allocation failure (SDDS_SetRowValues)");
          retval = 0;
        }
      }
      break;
    case SDDS_CHARACTER:
      if (mode & SDDS_PASS_BY_VALUE)
        *(((char *)SDDS_dataset->data[index]) + row) = (char)va_arg(argptr, int);
      else
        *(((char *)SDDS_dataset->data[index]) + row) = *(va_arg(argptr, char *));
      break;
    default:
      SDDS_SetError("Unknown data type encountered (SDDS_SetRowValues");
      retval = 0;
      break;
    }
  } while (retval == -1);
  va_end(argptr);
  return (retval);
}

SDDS_ShortenTable()

int32_t SDDS_ShortenTable	(	SDDS_DATASET *	SDDS_dataset,
		int64_t	rows )

Shortens the data table in the SDDS dataset to a specified number of rows.

This function reduces the number of allocated rows in the specified SDDS dataset to the given rows count. It reallocates memory for each column's data array and the row flags, freeing existing data as necessary. All data is reset, and the number of rows is set to zero.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure whose table will be shortened.
rows	The new number of rows to allocate in the table. If rows is less than or equal to zero, it defaults to 1.

Returns

Returns 1 on successful reallocation and initialization. On failure, returns 0 and records an error message.

See also

SDDS_Realloc, SDDS_SetMemory, SDDS_Free, SDDS_SetError

Definition at line 244 of file SDDS_dataprep.c.

                                                                    {
  SDDS_LAYOUT *layout;
  int64_t i, size;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_ShortenTable"))
    return (0);
  layout = &SDDS_dataset->layout;
  if (!SDDS_dataset->data && !(SDDS_dataset->data = (void **)calloc(layout->n_columns, sizeof(*SDDS_dataset->data)))) {
    SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_ShortenTable)");
    return (0);
  }
  if (rows <= 0)
    rows = 1;
  for (i = 0; i < layout->n_columns; i++) {
    size = SDDS_type_size[layout->column_definition[i].type - 1];
    if (SDDS_dataset->data[i])
      free(SDDS_dataset->data[i]);
    if (!(SDDS_dataset->data[i] = (void *)calloc(rows, size))) {
      SDDS_SetError("Unable to shorten page--memory allocation failure (SDDS_ShortenTable)");
      return (0);
    }
  }
  if (SDDS_dataset->row_flag)
    free(SDDS_dataset->row_flag);
  if (!(SDDS_dataset->row_flag = (int32_t *)malloc(rows * sizeof(int32_t)))) {
    SDDS_SetError("Unable to shorten page--memory allocation failure (SDDS_ShortenTable)");
    return (0);
  }
  SDDS_dataset->n_rows_allocated = rows;
  /* Shorten table is not exactly true. It is really deleting all the rows and then allocating new space.
     if (SDDS_dataset->n_rows > rows) {
     SDDS_dataset->n_rows = rows;
     }
  */
  SDDS_dataset->n_rows = 0;
 
  if (!SDDS_SetMemory(SDDS_dataset->row_flag, SDDS_dataset->n_rows_allocated, SDDS_LONG, (int32_t)1, (int32_t)0) ||
      !SDDS_SetMemory(SDDS_dataset->column_flag, SDDS_dataset->layout.n_columns, SDDS_LONG, (int32_t)1, (int32_t)0) || 
      !SDDS_SetMemory(SDDS_dataset->column_order, SDDS_dataset->layout.n_columns, SDDS_LONG, (int32_t)0, (int32_t)1)) {
    SDDS_SetError("Unable to shorten page--memory initialization failure (SDDS_ShortenTable)");
    return (0);
  }
  return (1);
}

SDDS_StartPage()

int32_t SDDS_StartPage	(	SDDS_DATASET *	SDDS_dataset,
		int64_t	expected_n_rows )

Initializes an SDDS_DATASET structure in preparation for inserting data into a new table.

This function prepares the specified SDDS dataset for data insertion by initializing necessary data structures and allocating memory based on the expected number of rows. It must be preceded by a call to SDDS_InitializeOutput. SDDS_StartPage can be called multiple times to begin writing additional tables within the dataset. After initializing a page, SDDS_WriteTable should be used to write the table to disk.

Parameters

SDDS_dataset	Pointer to the SDDS_DATASET structure representing the data set.
expected_n_rows	The expected number of rows in the data table. This value is used to preallocate memory for storing data values. If expected_n_rows is less than or equal to zero, it defaults to 1.

Returns

Returns 1 on successful initialization. On failure, returns 0 and records an error message.

See also

SDDS_InitializeOutput, SDDS_WriteTable, SDDS_SetError

Definition at line 70 of file SDDS_dataprep.c.

                                                                            {
  SDDS_LAYOUT *layout;
  int64_t i;
  int32_t size;
 
  if (!SDDS_CheckDataset(SDDS_dataset, "SDDS_StartPage"))
    return (0);
  if ((SDDS_dataset->writing_page) && (SDDS_dataset->layout.data_mode.fixed_row_count)) {
    if (!SDDS_UpdateRowCount(SDDS_dataset))
      return (0);
  }
  if (!SDDS_RestoreLayout(SDDS_dataset)) {
    SDDS_SetError("Unable to start page--couldn't restore layout (SDDS_StartPage)");
    return (0);
  }
  if (expected_n_rows <= 0)
    expected_n_rows = 1;
  SDDS_dataset->n_rows_written = 0;
  SDDS_dataset->last_row_written = -1;
  SDDS_dataset->writing_page = 0;
  SDDS_dataset->first_row_in_mem = 0;
  layout = &SDDS_dataset->layout;
  if (SDDS_dataset->page_started == 0) {
    if (layout->n_parameters) {
      if (!(SDDS_dataset->parameter = (void **)calloc(sizeof(*SDDS_dataset->parameter), layout->n_parameters))) {
        SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
        return (0);
      }
      for (i = 0; i < layout->n_parameters; i++) {
        if (!(SDDS_dataset->parameter[i] = (void *)calloc(SDDS_type_size[layout->parameter_definition[i].type - 1], 1))) {
          SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
          return (0);
        }
      }
    }
    if (layout->n_arrays) {
      if (!(SDDS_dataset->array = (SDDS_ARRAY *)calloc(sizeof(*SDDS_dataset->array), layout->n_arrays))) {
        SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
        return (0);
      }
    }
    if (layout->n_columns) {
      if (!(SDDS_dataset->data = (void **)calloc(sizeof(*SDDS_dataset->data), layout->n_columns))) {
        SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
        return (0);
      }
      SDDS_dataset->row_flag = NULL;
      if (expected_n_rows) {
        if (!(SDDS_dataset->row_flag = (int32_t *)SDDS_Malloc(sizeof(int32_t) * expected_n_rows))) {
          SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
          return (0);
        }
        for (i = 0; i < layout->n_columns; i++) {
          if (!(SDDS_dataset->data[i] = (void *)calloc(expected_n_rows, SDDS_type_size[layout->column_definition[i].type - 1]))) {
            SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
            return (0);
          }
        }
      }
      SDDS_dataset->n_rows_allocated = expected_n_rows;
      if (!(SDDS_dataset->column_flag = (int32_t *)SDDS_Realloc(SDDS_dataset->column_flag, sizeof(int32_t) * layout->n_columns)) || 
          !(SDDS_dataset->column_order = (int32_t *)SDDS_Realloc(SDDS_dataset->column_order, sizeof(int32_t) * layout->n_columns))) {
        SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
        return (0);
      }
    }
  } else if (SDDS_dataset->n_rows_allocated >= expected_n_rows && layout->n_columns) {
    for (i = 0; i < layout->n_columns; i++) {
      if (SDDS_dataset->data[i] && layout->column_definition[i].type == SDDS_STRING)
        SDDS_FreeStringArray(SDDS_dataset->data[i], SDDS_dataset->n_rows_allocated);
    }
  } else if (SDDS_dataset->n_rows_allocated < expected_n_rows && layout->n_columns) {
    if (!SDDS_dataset->data) {
      if (!(SDDS_dataset->column_flag = (int32_t *)SDDS_Realloc(SDDS_dataset->column_flag, sizeof(int32_t) * layout->n_columns)) ||
          !(SDDS_dataset->column_order = (int32_t *)SDDS_Realloc(SDDS_dataset->column_order, sizeof(int32_t) * layout->n_columns)) || 
          !(SDDS_dataset->data = (void **)calloc(layout->n_columns, sizeof(*SDDS_dataset->data)))) {
        SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
        return (0);
      }
    }
    for (i = 0; i < layout->n_columns; i++) {
      size = SDDS_type_size[layout->column_definition[i].type - 1];
      if (SDDS_dataset->data[i] && layout->column_definition[i].type == SDDS_STRING)
        SDDS_FreeStringArray(SDDS_dataset->data[i], SDDS_dataset->n_rows_allocated);
      if (!(SDDS_dataset->data[i] = (void *)SDDS_Realloc(SDDS_dataset->data[i], expected_n_rows * size))) {
        SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
        return (0);
      }
      SDDS_ZeroMemory((char *)SDDS_dataset->data[i] + size * SDDS_dataset->n_rows_allocated, size * (expected_n_rows - SDDS_dataset->n_rows_allocated));
    }
    if (!(SDDS_dataset->row_flag = (int32_t *)SDDS_Realloc(SDDS_dataset->row_flag, sizeof(int32_t) * expected_n_rows))) {
      SDDS_SetError("Unable to start  page--memory allocation failure (SDDS_StartPage)");
      return (0);
    }
    SDDS_dataset->n_rows_allocated = expected_n_rows;
  }
  if (SDDS_dataset->n_rows_allocated && layout->n_columns && !SDDS_SetMemory(SDDS_dataset->row_flag, SDDS_dataset->n_rows_allocated, SDDS_LONG, (int32_t)1, (int32_t)0)) {
    SDDS_SetError("Unable to start page--memory initialization failure (SDDS_StartPage)");
    return (0);
  }
  if (layout->n_columns && (!SDDS_SetMemory(SDDS_dataset->column_flag, layout->n_columns, SDDS_LONG, (int32_t)1, (int32_t)0) || 
                            !SDDS_SetMemory(SDDS_dataset->column_order, layout->n_columns, SDDS_LONG, (int32_t)0, (int32_t)1))) {
    SDDS_SetError("Unable to start page--memory initialization failure (SDDS_StartPage)");
    return (0);
  }
  SDDS_dataset->n_of_interest = layout->n_columns;
  SDDS_dataset->page_number++;
  SDDS_dataset->page_started = 1;
  SDDS_dataset->n_rows = 0;
  return (1);
}