wcscasecmp(3) — Linux manual page

wcscasecmp(3)           Library Functions Manual           wcscasecmp(3)

NAME

       wcscasecmp - 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);

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

       wcscasecmp():
           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)).

RETURN VALUE

       The wcscasecmp() function returns zero if the wide-character
       strings at s1 and s2 are equal except for case distinctions.  It
       returns a positive integer if s1 is greater than s2, ignoring
       case.  It returns a negative integer if s1 is smaller than s2,
       ignoring case.

ATTRIBUTES

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌──────────────────────────────┬───────────────┬────────────────┐
       │ Interface                    │ Attribute     │ Value          │
       ├──────────────────────────────┼───────────────┼────────────────┤
       │ wcscasecmp()                 │ 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)

COLOPHON

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Linux man-pages 6.9.1          2024-05-02                  wcscasecmp(3)

Pages that refer to this page: strcasecmp(3), wcscmp(3)

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