[deliverable/binutils-gdb.git] / libiberty / strnlen.c

/* Portable version of strnlen.
   This function is in the public domain.  */

/*

@deftypefn Supplemental size_t strnlen (const char *@var{s}, size_t @var{maxlen})

Returns the length of @var{s}, as with @code{strlen}, but never looks
past the first @var{maxlen} characters in the string.  If there is no
'\0' character in the first @var{maxlen} characters, returns
@var{maxlen}.

@end deftypefn

*/

#include "config.h"

#include <stddef.h>

size_t
strnlen (const char *s, size_t maxlen)
{
  size_t i;

  for (i = 0; i < maxlen; ++i)
    if (s[i] == '\0')
      break;
  return i;
}
Commit	Line	Data
995b61fe DD	1	/* Portable version of strnlen.
	2	This function is in the public domain. */
	3
	4	/*
	5
	6	@deftypefn Supplemental size_t strnlen (const char *@var{s}, size_t @var{maxlen})
	7
	8	Returns the length of @var{s}, as with @code{strlen}, but never looks
	9	past the first @var{maxlen} characters in the string. If there is no
	10	'\0' character in the first @var{maxlen} characters, returns
	11	@var{maxlen}.
	12
	13	@end deftypefn
	14
	15	*/
	16
	17	#include "config.h"
	18
	19	#include <stddef.h>
	20
	21	size_t
	22	strnlen (const char *s, size_t maxlen)
	23	{
	24	size_t i;
	25
	26	for (i = 0; i < maxlen; ++i)
	27	if (s[i] == '\0')
	28	break;
	29	return i;
	30	}