4.67 SDDS_GetRow

• name:
  SDDS_GetRow
• description:
  Returns a pointer to a specified row of homogeneous data values from a table. The columns included are those declared to be “of interest” by calling, for example, SDDS_SetColumnsOfInterest. The rows available are those declared to be of interest by calling, for example, SDDS_SetRowsOfInterest.
• synopsis: #include ”SDDS.h”
  void *SDDS_GetRow(SDDS_TABLE *SDDS_table, int32_t srow_index, void *memory);
• arguments:
  • SDDS_table: Address of the SDDS_TABLE structure for the data set.
  • srow_index: Index of the row desired in the list of selected rows (or “rows of interest”).
  • memory: Address of location into which to write the data values. If NULL, memory is allocated for this purpose.
• return value:
  On success, returns the address of the first item of the row. This pointer should be cast to data-type*, where data-type is the data type of the columns selected. Note that for type SDDS_STRING, data-type is char *. The data is stored in newly-allocated memory (or in the memory passed by the caller), and may be modified as needed by the caller.
  
  On failure, returns NULL and records an error message.