wcscasecmp(3)              Library Functions Manual              wcscasecmp(3)

NAME
       wcscasecmp, wcsncasecmp - compare two wide-character strings, ignoring
       case

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #include <wchar.h>

       int wcscasecmp(const wchar_t *s1, const wchar_t *s2);
       int wcsncasecmp(const wchar_t s1[.n], const wchar_t s2[.n], size_t n);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       wcscasecmp(), wcsncasecmp():
           Since glibc 2.10:
               _POSIX_C_SOURCE >= 200809L
           Before glibc 2.10:
               _GNU_SOURCE

DESCRIPTION
       The wcscasecmp() function is the wide-character equivalent of the
       strcasecmp(3) function.  It compares the wide-character string pointed
       to by s1 and the wide-character string pointed to by s2, ignoring case
       differences (towupper(3), towlower(3)).

       The wcsncasecmp() function is similar (the wide-character equivalent of
       strncasecmp(3)), except that it compares no more than n wide characters
       of s1 and s2.

RETURN VALUE
       The wcscasecmp() and wcsncasecmp() functions return an integer less
       than, equal to, or greater than zero if s1 is, after ignoring case,
       found to be less than, to match, or be greater than s2, respectively.

ATTRIBUTES
       For an explanation of the terms used in this section, see
       attributes(7).

       +-------------------------------------+---------------+----------------+
       |Interface                            | Attribute     | Value          |
       +-------------------------------------+---------------+----------------+
       |wcscasecmp (), wcsncasecmp ()        | Thread safety | MT-Safe locale |
       +-------------------------------------+---------------+----------------+
STANDARDS
       POSIX.1-2008.

HISTORY
       glibc 2.1.

NOTES
       The behavior of wcscasecmp() depends on the LC_CTYPE category of the
       current locale.

SEE ALSO
       strcasecmp(3), wcscmp(3)

Linux man-pages 6.10              2024-07-23                     wcscasecmp(3)