STRNLEN

Section: Linux Programmer's Manual (3)
Updated: 1999-07-25
Index Return to Main Contents
 

NAME

strnlen - determine the length of a fixed-size string  

SYNOPSIS

#define _GNU_SOURCE

#include <string.h>

size_t strnlen(const char *s, size_t maxlen);
 

DESCRIPTION

The strnlen() function returns the number of characters in the string pointed to by s, not including the terminating '\0' character, but at most maxlen. In doing this, strnlen() looks only at the first maxlen characters at s and never beyond s+maxlen.  

RETURN VALUE

The strnlen() function returns strlen(s), if that is less than maxlen, or maxlen if there is no '\0' character among the first maxlen characters pointed to by s.  

CONFORMING TO

This function is a GNU extension.  

SEE ALSO

strlen(3)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
CONFORMING TO
SEE ALSO

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