#include "memalign.h"
+#define PTR_ALIGN(ptr, mask) \
+ (char *)((uintptr_t)((ptr) + (mask)) & ~(mask))
+
struct align_footer {
unsigned int offset;
};
-#define PTR_ALIGN(ptr, mask) \
- (char *) (((uintptr_t) ((ptr) + (mask)) & ~(mask)))
-
void *fio_memalign(size_t alignment, size_t size)
{
struct align_footer *f;
assert(!(alignment & (alignment - 1)));
- ptr = malloc(size + alignment + size + sizeof(*f) - 1);
+ ptr = malloc(size + alignment + sizeof(*f) - 1);
if (ptr) {
ret = PTR_ALIGN(ptr, alignment - 1);
f = ret + size;