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wcscasecmp(3)

WCSCASECMP(3)              Linux Programmer's Manual             WCSCASECMP(3)



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

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 str‐
       casecmp(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 posi‐
       tive integer if s1 is greater than s2, ignoring  case.   It  returns  a
       negative integer if s1 is smaller than s2, ignoring case.

VERSIONS
       The wcscasecmp() function is provided in glibc since version 2.1.

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

       allbox; lb lb lb l  l  l.   Interface Attribute Value  T{  wcscasecmp()
       T}   Thread safety   MT-Safe locale

CONFORMING TO
       POSIX.1-2008.   This  function is not specified in POSIX.1-2001, and is
       not widely available on other systems.

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

SEE ALSO
       strcasecmp(3), wcscmp(3)

COLOPHON
       This  page  is  part of release 5.02 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.



GNU                               2016-03-15                     WCSCASECMP(3)
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