toy_memory.h

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#ifndef TOY_MEMORY_H_
#define TOY_MEMORY_H_
 
#include <stddef.h>
 
#include "toy_common.h"
 
#define TOY_GROW_CAPACITY(capacity)                       ((capacity) < 8 ? 8 : (capacity) * 2)
 
#define TOY_GROW_CAPACITY_FAST(capacity)                  ((capacity) < 32 ? 32 : (capacity) * 2)
 
#define TOY_ALLOCATE(type, count)                         ((type*)Toy_reallocate(NULL, 0, sizeof(type) * (count)))
 
#define TOY_FREE(type, pointer)                           Toy_reallocate(pointer, sizeof(type), 0)
 
#define TOY_FREE_ARRAY(type, pointer, oldCount)           Toy_reallocate((type*)pointer, sizeof(type) * (oldCount), 0)
 
#define TOY_GROW_ARRAY(type, pointer, oldCount, count)    (type*)Toy_reallocate((type*)pointer, sizeof(type) * (oldCount), sizeof(type) * (count))
 
#define TOY_SHRINK_ARRAY(type, pointer, oldCount, count)  (type*)Toy_reallocate((type*)pointer, sizeof(type) * (oldCount), sizeof(type) * (count))
 
//implementation details
TOY_API void* Toy_reallocate(void *pointer, size_t oldSize, size_t newSize);
 
//assign the memory allocator
typedef void* (*Toy_MemoryAllocatorFn)(void *pointer, size_t oldSize, size_t newSize);
 
TOY_API void Toy_setMemoryAllocator(Toy_MemoryAllocatorFn);
 
#endif /* TOY_MEMORY_H_ */