is_blank.c File Reference

Detailed Description

Implementation of is_blank function.

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.

Author

M. Borland, C. Saunders, R. Soliday

Definition in file is_blank.c.

#include "mdb.h"
#include <ctype.h>

Go to the source code of this file.

Functions
long	is_blank (char *s)
	Determine whether a string is composed entirely of whitespace characters.

Function Documentation

is_blank()

long is_blank

(

char *

s

)

Determine whether a string is composed entirely of whitespace characters.

This function checks each character in the input string to verify if it is a space character.

Parameters

s	The null-terminated string to be checked.

Returns

Returns 1 if the string is all whitespace, otherwise returns 0.

Definition at line 27 of file is_blank.c.

                       {
  register char *ptr;
 
  ptr = s;
  while (*ptr && isspace(*ptr))
    ptr++;
  if (*ptr)
    return (0);
  return (1);
}