strncmp

Syntax

#include <string.h> int strncmp(const char *s1, const char *s2, size_t max);

Description

This function compares up to max characters of s1 and s2.

Return Value

Zero if the strings are equal, a positive number if s1 comes after s2 in the ASCII collating sequense, else a negative number.

Portability

ANSI/ISO C	C89; C99
POSIX	1003.2-1992; 1003.1-2001

Example

if (strncmp(arg, "-i", 2) == 0) do_include();