X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fmbswidth.h;h=4fcdb2096ae17033a0045604880ef50881fd1f71;hb=bcbf6b9fd9098dfb5c37ef710a2db02fa53b7feb;hp=bfda2832bc23ae6afb50e64b3751d355225a8eca;hpb=4aba872bc71ff1089b5d75ec181689477d0dfb9a;p=gnulib.git

diff --git a/lib/mbswidth.h b/lib/mbswidth.h
index bfda2832b..4fcdb2096 100644
--- a/lib/mbswidth.h
+++ b/lib/mbswidth.h
@@ -1,5 +1,5 @@
 /* Determine the number of screen columns needed for a string.
-   Copyright (C) 2000 Free Software Foundation, Inc.
+   Copyright (C) 2000-2004 Free Software Foundation, Inc.
 
    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
@@ -15,27 +15,47 @@
    along with this program; if not, write to the Free Software Foundation,
    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
-#ifndef PARAMS
-# if defined PROTOTYPES || defined __STDC__
-#  define PARAMS(Args) Args
-# else
-#  define PARAMS(Args) ()
-# endif
+#include <stddef.h>
+
+/* Avoid a clash of our mbswidth() with a function of the same name defined
+   in UnixWare 7.1.1 <wchar.h>.  We need this #include before the #define
+   below.
+   However, we don't want to #include <wchar.h> on all platforms because
+   - Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+     <wchar.h>.
+   - BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
+     <wchar.h>.  */
+#if HAVE_DECL_MBSWIDTH_IN_WCHAR_H
+# include <wchar.h>
 #endif
 
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+
 /* Optional flags to influence mbswidth/mbsnwidth behavior.  */
 
-/* If this bit is set, assume invalid characters have width 0.
-   Otherwise, return -1 upon finding an invalid or incomplete character.  */
-#define MBSW_ACCEPT_INVALID 1
+/* If this bit is set, return -1 upon finding an invalid or incomplete
+   character.  Otherwise, assume invalid characters have width 1.  */
+#define MBSW_REJECT_INVALID 1
+
+/* If this bit is set, return -1 upon finding a non-printable character.
+   Otherwise, assume unprintable characters have width 0 if they are
+   control characters and 1 otherwise.  */
+#define MBSW_REJECT_UNPRINTABLE	2
 
-/* If this bit is set, assume unprintable characters have width 1.
-   Otherwise, return -1 upon finding a non-printable character.  */
-#define MBSW_ACCEPT_UNPRINTABLE	2
 
 /* Returns the number of screen columns needed for STRING.  */
-extern int mbswidth PARAMS ((const char *string, int flags));
+#define mbswidth gnu_mbswidth  /* avoid clash with UnixWare 7.1.1 function */
+extern int mbswidth (const char *string, int flags);
 
 /* Returns the number of screen columns needed for the NBYTES bytes
    starting at BUF.  */
-extern int mbsnwidth PARAMS ((const char *buf, size_t nbytes, int flags));
+extern int mbsnwidth (const char *buf, size_t nbytes, int flags);
+
+
+#ifdef	__cplusplus
+}
+#endif