STRCASECMP(3) | Library Functions Manual | STRCASECMP(3) |
strcasecmp
, strncasecmp
—
#include <strings.h>
int
strcasecmp
(const
char *s1, const char
*s2);
int
strncasecmp
(const
char *s1, const char
*s2, size_t
len);
strcasecmp
() and
strncasecmp
() functions compare the nul-terminated
strings s1 and s2 and return an
integer greater than, equal to, or less than 0, according to whether
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
’.
The strncasecmp
() function compares at
most len characters.
strcasecmp
() and
strncasecmp
() functions conform to
IEEE Std 1003.1-2001 (“POSIX.1”).
strcasecmp
() and
strncasecmp
() functions first appeared in
4.4BSD.
strncasecmp
() always
returns 0.
July 11, 2016 | NetBSD 9.0 |