Only implemented on GCC and Clang for now. Other compilers use a
dummy implementation that always returns false, which should be a safe
[but slightly inefficient] assumption in all cases.
---
src/mesa/main/compiler.h | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/src/mesa/main/compiler.h b/src/mesa/main/compiler.h
index 0f27d5a..8853292 100644
--- a/src/mesa/main/compiler.h
+++ b/src/mesa/main/compiler.h
@@ -444,7 +444,28 @@ do {
\
#define Elements(x) (sizeof(x)/sizeof(*(x)))
#endif
-
+#ifdef __cplusplus
+/**
+ * Macro function that evaluates to true if T is a trivially
+ * destructible type -- that is, if its (non-virtual) destructor
+ * performs no action and all member variables and base classes are
+ * trivially destructible themselves.
+ */
+# if defined(__GNUC__)
+# if ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)))
+# define HAS_TRIVIAL_DESTRUCTOR(T) __has_trivial_destructor(T)
+# endif
+# elif (defined(__clang__) && defined(__has_feature))
+# if __has_feature(has_trivial_destructor)
+# define HAS_TRIVIAL_DESTRUCTOR(T) __has_trivial_destructor(T)
+# endif
+# endif
+# ifndef HAS_TRIVIAL_DESTRUCTOR
+ /* It's always safe (if inefficient) to assume that a
+ * destructor is non-trivial */
+# define HAS_TRIVIAL_DESTRUCTOR(T) (false)
+# endif
+#endif
#ifdef __cplusplus
}
--
1.8.3.4
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