9a9baa5254
* strnlen.c: New file. * configure.ac: Check for strnlen, add it to AC_LIBOBJ if it's not present. * Makefile.in: Rebuild dependencies. (CFILES): Add strnlen.c. (CONFIGURED_OFILES): Add ./strnlen.$(objext). * configure, config.in, functions.texi: Rebuild. * maint-tool: Accept .def files in the include directory. From-SVN: r191432
31 lines
585 B
C
31 lines
585 B
C
/* Portable version of strnlen.
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This function is in the public domain. */
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/*
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@deftypefn Supplemental size_t strnlen (const char *@var{s}, size_t @var{maxlen})
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Returns the length of @var{s}, as with @code{strlen}, but never looks
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past the first @var{maxlen} characters in the string. If there is no
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'\0' character in the first @var{maxlen} characters, returns
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@var{maxlen}.
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@end deftypefn
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*/
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#include "config.h"
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#include <stddef.h>
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size_t
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strnlen (const char *s, size_t maxlen)
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{
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size_t i;
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for (i = 0; i < maxlen; ++i)
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if (s[i] == '\0')
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break;
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return i;
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}
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