Name
strlen - calculate the length of a string Library
Standard C library ( libc ", " -lc ) Synopsis
#include <string.h>
size_t strlen(const char * s );
Description
The strlen() function calculates the length of the string pointed to by s
, excluding the terminating null byte ('\e0'). Return Value
The strlen() function returns the number of bytes in the string pointed to by s
. Attributes
For an explanation of the terms used in this section, see attributes(7). allbox; lbx lb lb Interface | Attribute | Value |
T{ strlen() T} | Thread safety | MT-Safe |
Notes
In cases where the input buffer may not contain a terminating null byte, strnlen(3) should be used instead.