make firm compilable with a c++ compiler

[libfirm] / ir / adt / util.h

diff --git a/ir/adt/util.h b/ir/adt/util.h
index a5d1fe1..1e93e3f 100644 (file)
--- a/ir/adt/util.h
+++ b/ir/adt/util.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -26,14 +26,7 @@
 #ifndef FIRM_ADT_UTIL_H
 #define FIRM_ADT_UTIL_H
 
-/**
- * Get the offset of a member of a struct.
- * @param type   The type of the struct member is in.
- * @param member The name of the member.
- * @return       The offset of member in type in bytes.
- */
-#define offset_of(type, member) \
-  ((char *) &(((type *) 0)->member) - (char *) 0)
+#include <stddef.h>
 
 /**
  * Make pointer to the struct from a pointer to a member of that struct.
@@ -42,43 +35,15 @@
  * @param member  The name of the member.
  * @return        A pointer to the struct member is in.
  */
-#define container_of(ptr, type, member) \
-       ((type *) ((char *) (ptr) - offset_of(type, member)))
-
-/**
- * Get the number of elements of a static array.
- * @param arr The static array.
- * @return The number of elements in that array.
- */
-#define array_size(arr) \
-  (sizeof(arr) / sizeof((arr)[0]))
+#define firm_container_of(ptr, type, member) \
+       ((type *) ((char *) (ptr) - offsetof(type, member)))
 
 /**
- * Asserts that the constant expression x is not zero at compiletime. name has
- * to be a unique identifier.
+ * Returns size of a static array. Warning: This returns invalid values for
+ * dynamically allocated arrays.
  *
- * @note This uses the fact, that double case labels are not allowed.
- */
-#define COMPILETIME_ASSERT(x, name) \
-    static __attribute__((unused)) void compiletime_assert_##name (int h) { \
-        switch(h) { case 0: case (x): ; } \
-    }
-
-#ifdef __GNUC__
-/**
- * Indicates to the compiler that the value of x is very likely 1
- * @note Only use this in speed critical code and when you are sure x is often 1
- */
-#define LIKELY(x)   __builtin_expect((x), 1)
-
-/**
- * Indicates to the compiler that it's very likely that x is 0
- * @note Only use this in speed critical code and when you are sure x is often 0
+ * @param a    static array
  */
-#define UNLIKELY(x) __builtin_expect((x), 0)
-#else
-#define LIKELY(x)   x
-#define UNLIKELY(x) x
-#endif
+#define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
 
 #endif