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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
STRCMP(3) Linux Programmer's Manual STRCMP(3)
strcmp, strncmp - compare two strings
#include <string.h>
int strcmp(const char *s1, const char *s2);
int strncmp(const char *s1, const char *s2, size_t n);
The strcmp() function compares the two strings s1 and s2. It returns
an integer less than, equal to, or greater than zero if s1 is found,
respectively, to be less than, to match, or be greater than s2.
The strncmp() function is similar, except it compares only the first
(at most) n bytes of s1 and s2.
The strcmp() and strncmp() functions return an integer less than,
equal to, or greater than zero if s1 (or the first n bytes thereof)
is found, respectively, to be less than, to match, or be greater than
s2.
For an explanation of the terms used in this section, see
attributes(7).
┌────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├────────────────────┼───────────────┼─────────┤
│strcmp(), strncmp() │ Thread safety │ MT-Safe │
└────────────────────┴───────────────┴─────────┘
POSIX.1-2001, POSIX.1-2008, C89, C99, SVr4, 4.3BSD.
bcmp(3), memcmp(3), strcasecmp(3), strcoll(3), string(3),
strncasecmp(3), strverscmp(3), wcscmp(3), wcsncmp(3)
This page is part of release 4.12 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the
latest version of this page, can be found at
https://www.kernel.org/doc/man-pages/.
2015-08-08 STRCMP(3)
Pages that refer to this page: bash(1), bcmp(3), hsearch(3), memcmp(3), qsort(3), scandir(3), selinux_file_context_cmp(3), strcasecmp(3), strcoll(3), string(3), strverscmp(3), strxfrm(3), wcscmp(3), wcsncmp(3), signal-safety(7)