diff options
Diffstat (limited to 'mesalib/src/mesa/main/compiler.h')
| -rw-r--r-- | mesalib/src/mesa/main/compiler.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/mesalib/src/mesa/main/compiler.h b/mesalib/src/mesa/main/compiler.h index 0f27d5a66..d806d5b9d 100644 --- a/mesalib/src/mesa/main/compiler.h +++ b/mesalib/src/mesa/main/compiler.h @@ -444,7 +444,29 @@ 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 } |