Avoid defining __restrict in a header file. This doesn't work e.g. on MacOS X.

[gnulib.git] / lib / ucs4-utf16.h

diff --git a/lib/ucs4-utf16.h b/lib/ucs4-utf16.h
index bf56a55..8450a99 100644 (file)
--- a/lib/ucs4-utf16.h
+++ b/lib/ucs4-utf16.h
@@ -1,51 +1,37 @@
 /* Conversion UCS-4 to UTF-16.
-   Copyright (C) 2002 Free Software Foundation, Inc.
-   Written by Bruno Haible <haible@clisp.cons.org>, 2002.
+   Copyright (C) 2002, 2005-2007 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2002.
 
-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 2, or (at your option)
-any later version.
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU Library General Public License as published
+   by the Free Software Foundation; either version 2, 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.
+   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
+   Library General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Library General Public
+   License along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+   USA.  */
 
+#ifndef _UCS4_UTF16_H
+#define _UCS4_UTF16_H
 
 #include <stddef.h>
+#include "unitypes.h"
+
+extern int u16_uctomb_aux (uint16_t *s, ucs4_t uc, int n);
 
 /* Return the length (number of units) of the UTF-16 representation of uc,
    after storing it at S.  Return -1 upon failure, -2 if the number of
    available units, N, is too small.  */
-static int
-u16_uctomb_aux (unsigned short *s, unsigned int uc, int n)
-{
-  if (uc >= 0x10000)
-    {
-      if (uc < 0x110000)
-       {
-         if (n >= 2)
-           {
-             s[0] = 0xd800 + ((uc - 0x10000) >> 10);
-             s[1] = 0xdc00 + ((uc - 0x10000) & 0x3ff);
-             return 2;
-           }
-       }
-      else
-       return -1;
-    }
-  return -2;
-}
-
 static inline int
-u16_uctomb (unsigned short *s, unsigned int uc, int n)
+u16_uctomb (uint16_t *s, ucs4_t uc, int n)
 {
-  if (uc < 0x10000 && n > 0)
+  if (uc < 0xd800 && n > 0)
     {
       s[0] = uc;
       return 1;
@@ -53,3 +39,5 @@ u16_uctomb (unsigned short *s, unsigned int uc, int n)
   else
     return u16_uctomb_aux (s, uc, n);
 }
+
+#endif /* _UCS4_UTF16_H */