view lib/wctob.c @ 14612:6ef4f1f39105

Revert "use _GL_ATTRIBUTE_CONST and _GL_ATTRIBUTE_PURE" This reverts commit 349d7fe0e307d59d508b3579317ee8d4eacfeb9c. Revert accidentally-pushed patch. Not yet ready.
author Jim Meyering <meyering@redhat.com>
date Mon, 25 Apr 2011 10:38:33 +0200
parents 97fc9a21a8fb
children 8250f2777afc
line wrap: on
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/* Convert wide character to unibyte character.
   Copyright (C) 2008, 2010-2011 Free Software Foundation, Inc.
   Written by Bruno Haible <bruno@clisp.org>, 2008.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

/* Specification.  */
#include <wchar.h>

#include <stdio.h>
#include <stdlib.h>

int
wctob (wint_t wc)
{
  char buf[64];

  if (!(MB_CUR_MAX <= sizeof (buf)))
    abort ();
  /* Handle the case where WEOF is a value that does not fit in a wchar_t.  */
  if (wc == (wchar_t)wc)
    if (wctomb (buf, (wchar_t)wc) == 1)
      return (unsigned char) buf[0];
  return EOF;
}