GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 7.3.0(Wheezy) |
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strnlen(3) |
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strnlen − determine the length of a fixed-size string
#include <string.h>
size_t strnlen(const char *s, size_t maxlen);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
strnlen():
Since glibc 2.10:
_XOPEN_SOURCE >= 700 || _POSIX_C_SOURCE >= 200809L
Before glibc 2.10:
_GNU_SOURCE
The strnlen() function returns the number of bytes in the string pointed to by s, excluding the terminating null bye ('\0'), but at most maxlen. In doing this, strnlen() looks only at the first maxlen bytes at s and never beyond s+maxlen.
The strnlen() function returns strlen(s), if that is less than maxlen, or maxlen if there is no null byte ('\0') among the first maxlen bytes pointed to by s.
POSIX.1-2008.
strlen(3)
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
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strnlen(3) | |