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wfcqueue: implement C++ API based on function overloading
[urcu.git]
/
include
/
urcu
/
compiler.h
diff --git
a/include/urcu/compiler.h
b/include/urcu/compiler.h
index 4806ee338a99706ae5bb9eedb503fdc54e00c661..157346763078a3ec1d73b7c65618ed1bd98b325f 100644
(file)
--- a/
include/urcu/compiler.h
+++ b/
include/urcu/compiler.h
@@
-108,10
+108,21
@@
#define CAA_ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#define CAA_ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#ifdef __GNUC__
+/*
+ * URCU_GCC_VERSION is used to blacklist specific GCC versions with known
+ * bugs, clang also defines these macros to an equivalent GCC version it
+ * claims to support, so exclude it.
+ */
+#if defined(__GNUC__) && !defined(__clang__)
# define URCU_GCC_VERSION (__GNUC__ * 10000 \
+ __GNUC_MINOR__ * 100 \
+ __GNUC_PATCHLEVEL__)
#endif
# define URCU_GCC_VERSION (__GNUC__ * 10000 \
+ __GNUC_MINOR__ * 100 \
+ __GNUC_PATCHLEVEL__)
#endif
+#ifndef __cplusplus
+#define caa_c_transparent_union __attribute__((__transparent_union__))
+#else
+#define caa_c_transparent_union
+#endif
+
#endif /* _URCU_COMPILER_H */
#endif /* _URCU_COMPILER_H */
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