Improve name: "count-one-bits" is better than "popcount".

[gnulib.git] / lib / mbswidth.h

diff --git a/lib/mbswidth.h b/lib/mbswidth.h
index 878e67e..eec4ff6 100644 (file)
--- a/lib/mbswidth.h
+++ b/lib/mbswidth.h
@@ -1,5 +1,5 @@
 /* Determine the number of screen columns needed for a string.
-   Copyright (C) 2000-2002 Free Software Foundation, Inc.
+   Copyright (C) 2000-2004, 2007 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
@@ -13,7 +13,27 @@
 
    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.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#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.  */
 
@@ -26,6 +46,7 @@
    control characters and 1 otherwise.  */
 #define MBSW_REJECT_UNPRINTABLE        2
 
+
 /* Returns the number of screen columns needed for STRING.  */
 #define mbswidth gnu_mbswidth  /* avoid clash with UnixWare 7.1.1 function */
 extern int mbswidth (const char *string, int flags);
@@ -33,3 +54,8 @@ 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 (const char *buf, size_t nbytes, int flags);
+
+
+#ifdef __cplusplus
+}
+#endif