gettimeofday: port recent C++ fix to Emacs

[gnulib.git] / lib / unitypes.in.h

diff --git a/lib/unitypes.in.h b/lib/unitypes.in.h
index e78c97d..50a59f1 100644 (file)
--- a/lib/unitypes.in.h
+++ b/lib/unitypes.in.h
@@ -1,5 +1,5 @@
-/* Elementary types for the GNU UniString library.
-   Copyright (C) 2002, 2005-2006, 2009-2011 Free Software Foundation, Inc.
+/* Elementary types and macros for the GNU UniString library.
+   Copyright (C) 2002, 2005-2006, 2009-2013 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify it
    under the terms of the GNU Lesser General Public License as published
@@ -23,4 +23,24 @@
 /* Type representing a Unicode character.  */
 typedef uint32_t ucs4_t;
 
+/* Attribute of a function whose result depends only on the arguments
+   (not pointers!) and which has no side effects.  */
+#ifndef _UC_ATTRIBUTE_CONST
+# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
+#  define _UC_ATTRIBUTE_CONST __attribute__ ((__const__))
+# else
+#  define _UC_ATTRIBUTE_CONST
+# endif
+#endif
+
+/* Attribute of a function whose result depends only on the arguments
+   (possibly pointers) and global memory, and which has no side effects.  */
+#ifndef _UC_ATTRIBUTE_PURE
+# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
+#  define _UC_ATTRIBUTE_PURE __attribute__ ((__pure__))
+# else
+#  define _UC_ATTRIBUTE_PURE
+# endif
+#endif
+
 #endif /* _UNITYPES_H */