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-rw-r--r--include/freetype/internal/ftmemory.h22
1 files changed, 17 insertions, 5 deletions
diff --git a/include/freetype/internal/ftmemory.h b/include/freetype/internal/ftmemory.h
index 2010ca9..026aa63 100644
--- a/include/freetype/internal/ftmemory.h
+++ b/include/freetype/internal/ftmemory.h
@@ -4,7 +4,7 @@
/* */
/* The FreeType memory management macros (specification). */
/* */
-/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007 by */
+/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -58,15 +58,27 @@ FT_BEGIN_HEADER
/*
- * C++ refuses to handle statements like p = (void*)anything; where `p'
- * is a typed pointer. Since we don't have a `typeof' operator in
- * standard C++, we have to use ugly casts.
+ * C++ refuses to handle statements like p = (void*)anything, with `p' a
+ * typed pointer. Since we don't have a `typeof' operator in standard
+ * C++, we have to use a template to emulate it.
*/
#ifdef __cplusplus
-#define FT_ASSIGNP( p, val ) *((void**)&(p)) = (val)
+
+ extern "C++"
+ template <typename T> inline T*
+ cplusplus_typeof( T*,
+ void *v )
+ {
+ return static_cast <T*> ( v );
+ }
+
+#define FT_ASSIGNP( p, val ) (p) = cplusplus_typeof( (p), (val) )
+
#else
+
#define FT_ASSIGNP( p, val ) (p) = (val)
+
#endif