strcmp

STRCMP(3)                 OpenBSD Programmer's Manual                STRCMP(3)

NAME

     strcmp, strncmp - compare strings

SYNOPSIS

     #include <string.h>

     int
     strcmp(const char *s1, const char *s2);

     int
     strncmp(const char *s1, const char *s2, size_t len);

DESCRIPTION

     The strcmp() and strncmp() functions lexicographically compare the NUL-
     terminated strings s1 and s2.  The strncmp() function compares at most
     len characters.

RETURN VALUES

     The strcmp() and strncmp() functions return an integer greater than,
     equal to, or less than 0, according to whether the string s1 is greater
     than, equal to, or less than the string s2.  The comparison is done using
     unsigned characters, so that `\200' is greater than `\0'.

SEE ALSO

     bcmp(3), memcmp(3), strcasecmp(3), strcoll(3), strxfrm(3), wcscmp(3)

STANDARDS

     The strcmp() and strncmp() functions conform to ANSI X3.159-1989
     (``ANSI C89'').

HISTORY

     The strcmp() and strncmp() functions first appeared in Version 7 AT&T
     UNIX.

OpenBSD 5.1                      July 25, 2011                     OpenBSD 5.1