xref: /original-bsd/lib/libc/string/strncasecmp.3 (revision 1e82c8c9)
Copyright (c) 1990 The Regents of the University of California.
All rights reserved.

This code is derived from software contributed to Berkeley by
Chris Torek.

%sccs.include.redist.man%

@(#)strncasecmp.3 5.1 (Berkeley) 05/17/90

STRCASECMP 3 ""
C 7
NAME
strncasecmp - compare strings, ignoring case
SYNOPSIS
#include <string.h>

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

int
strncasecmp(const char *s1, const char *s2, size_t len);
DESCRIPTION
Strcasecmp compares null-terminated strings s1 and s2 and returns an integer greater than, equal to, or less than 0, according as s1 is lexicographically greater than, equal to, or less than s2 after translation of each corresponding character to lower-case. The strings themselves are not modified. The comparison is done using unsigned characters, so that '\e200' is greater than '\e0'.

Strncasecmp compares at most len characters.

SEE ALSO
bcmp(3), memcmp(3), strcasecmp(3), strcmp(3), strcoll(3) strncmp(3), strxfrm(3)