strcasecmp3
Compare strings, ignoring case
Usage
#include <strings.h>
int
strcasecmp(const char *s1, const char *s2);
int
strncasecmp(const char *s1, const char *s2, size_t n);
#include <strings.h>
#include <xlocale.h>
int
strcasecmp_l(const char *s1, const char *s2, locale_t loc);
int
strncasecmp_l(const char *s1, const char *s2, size_t n, locale_t loc);
Library
Standard C Library (libc, -lc)
Overview
The strcasecmp() and strncasecmp() functions compare the null-terminated strings s1 and s2.
The strncasecmp() compares at most n characters.
Although the strcasecmp() and strncasecmp() functions use the current locale, the strcasecmp_l() and strncasecmp_l() functions may be passed locales directly. See xlocale(3) for more information.
Return values
The strcasecmp() and strncasecmp() return 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 ‘\200’ is greater than ‘\0’.
Releases
163 releases since Mac OS X 10.0; the text changed 5 times.