old-cross-binutils/libiberty/strnlen.c
2012-10-10 03:11:33 +00:00

30 lines
585 B
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;
}