STRLEN(3) Linux Programmer's Manual STRLEN(3)

strlen - calculate the length of a string

#include <string.h>

size_t strlen(const char *s);

The strlen() function calculates the length of the string s, excluding the terminating null byte ('\0').

The strlen() function returns the number of bytes in the string s.

see_pthreads(7))">)">Multithreading (see pthreads(7))

The strlen() function is thread-safe.

SVr4, 4.3BSD, C89, C99.

string(3), strnlen(3), wcslen(3), wcsnlen(3)

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2014-02-25 GNU

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