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Command: strcmp | Section: 3 | Source: OpenBSD | File: strcmp.3
STRCMP(3) FreeBSD Library Functions 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() function first appeared outside of Bell Labs in PWB/UNIX
1.0. strncmp() first appeared in Version 7 AT&T UNIX.
FreeBSD 14.1-RELEASE-p8 August 1, 2022 FreeBSD 14.1-RELEASE-p8