added G_PASTE() and G_STATIC_ASSERT(), based on patches by Christian

2008-10-29 16:11:14  Tim Janik  <timj@gtk.org>

        * glib/gmacros.h: added G_PASTE() and G_STATIC_ASSERT(), based on
        patches by Christian Persch and Christian Dywan. Fixes:
        Bug 558381 - Add support for compile time assertions

svn path=/trunk/; revision=7633

diff --git a/ChangeLog b/ChangeLog
index 403f99c..4cd91f5 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-10-29 16:11:14  Tim Janik  <timj@gtk.org>
+
+       * glib/gmacros.h: added G_PASTE() and G_STATIC_ASSERT(), based on
+       patches by Christian Persch and Christian Dywan. Fixes:
+       Bug 558381 - Add support for compile time assertions
+
 2008-10-27  Joseph Pingenot  <gnomesvn@digitasaru.net>
 
        * glib/ghash.c: changed "#GHashTableIterator" to "#GHashTableIter"

diff --git a/glib/gmacros.h b/glib/gmacros.h
index f87e932..356db11 100644 (file)
--- a/glib/gmacros.h
+++ b/glib/gmacros.h
@@ -137,6 +137,10 @@
 #define G_STRINGIFY(macro_or_string)   G_STRINGIFY_ARG (macro_or_string)
 #define        G_STRINGIFY_ARG(contents)       #contents
 
+#define G_PASTE_ARGS(identifier1,identifier2) identifier1 ## identifier2
+#define G_PASTE(identifier1,identifier2)      G_PASTE_ARGS (identifier1, identifier2)
+#define G_STATIC_ASSERT(expr) typedef struct { char Compile_Time_Assertion[(expr) ? 1 : -1]; } G_PASTE (_GStaticAssert_, __LINE__)
+
 /* Provide a string identifying the current code position */
 #if defined(__GNUC__) && (__GNUC__ < 3) && !defined(__cplusplus)
 #  define G_STRLOC     __FILE__ ":" G_STRINGIFY (__LINE__) ":" __PRETTY_FUNCTION__ "()"