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No-op if DELETE_OBJ is given a NULL pointer

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Chris Robinson 2013-05-27 11:57:28 -07:00
parent 9e84f38a46
commit 8d874512b6
1 changed files with 7 additions and 4 deletions
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11
OpenAL32/Include/alMain.h
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@ -74,13 +74,16 @@ static const union {
#define EXTRACT_VCALL_ARGS(...) __VA_ARGS__ #define EXTRACT_VCALL_ARGS(...) __VA_ARGS__
/* Call a "virtual" method on an object, with arguments. */ /* Call a "virtual" method on an object, with arguments. */
#define VCALL(obj, func, args) (((obj)->vtbl->func)((obj), EXTRACT_VCALL_ARGS args)) #define VCALL(obj, func, args) ((obj)->vtbl->func((obj), EXTRACT_VCALL_ARGS args))
/* Call a "virtual" method on an object, with no arguments. */ /* Call a "virtual" method on an object, with no arguments. */
#define VCALL_NOARGS(obj, func) (((obj)->vtbl->func)((obj))) #define VCALL_NOARGS(obj, func) ((obj)->vtbl->func((obj)))
#define DELETE_OBJ(obj) do { \ #define DELETE_OBJ(obj) do { \
VCALL_NOARGS((obj),Destruct); \ if((obj) != NULL) \
VCALL_NOARGS((obj),Delete); \ { \
VCALL_NOARGS((obj),Destruct); \
VCALL_NOARGS((obj),Delete); \
} \
} while(0) } while(0)