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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''). |