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1 | .\" Copyright (c) 1990 The Regents of the University of California. |
2 | .\" All rights reserved. | |
3 | .\" | |
4 | .\" This code is derived from software contributed to Berkeley by | |
5 | .\" Chris Torek. | |
6 | .\" | |
7 | .\" %sccs.include.redist.man% | |
8 | .\" | |
9 | .\" @(#)strncmp.3 5.1 (Berkeley) %G% | |
10 | .\" | |
11 | .TH STRNCMP 3 "" | |
12 | .UC 4 | |
13 | .SH NAME | |
14 | strncmp \- compare strings of limited length | |
15 | .SH SYNOPSIS | |
16 | .nf | |
17 | .ft B | |
18 | #include <string.h> | |
19 | ||
20 | int | |
21 | strcmp(const char *s1, const char *s2, size_t len); | |
22 | .ft R | |
23 | .fi | |
24 | .SH DESCRIPTION | |
25 | .B Strncmp | |
26 | compares at most | |
27 | .I len | |
28 | characters in the null-terminated strings | |
29 | .I s1 | |
30 | and | |
31 | .I s2 | |
32 | and returns an integer greater than, equal to, or less than 0, | |
33 | according as | |
34 | .I s1 | |
35 | is lexicographically greater than, equal to, or less than | |
36 | .IR s2 . | |
37 | The comparison is done using unsigned characters, so that '\e200' | |
38 | is greater than '\e0'. | |
39 | .SH SEE ALSO | |
40 | bcmp(3), memcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strncasecmp(3), | |
41 | strxfrm(3) | |
42 | .SH STANDARDS | |
43 | .B Strncmp | |
44 | conforms to ANSI X3.159-1989 (``ANSI C''). |