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Clearer macro conditions

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Imbus 2025-09-08 09:14:58 +02:00
parent de6aee3a3a
commit f29035319c
1 changed files with 13 additions and 14 deletions
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27
freelist/freelist.h
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@ -5,27 +5,26 @@
#include <stdint.h>
#include <stdlib.h>
/* Fiddle these around according to your need. Delete or check makefile */
#ifdef FREELIST_NOALIGN
#define ALIGN(x) (x)
#else // FREELIST_NOALIGN
/* Align to nearest multiple of sizeof(void*) */
static inline size_t align_up(size_t n) {
return (n + sizeof(void *) - 1) & ~(sizeof(void *) - 1);
/* Align to nearest multiple of align */
static inline size_t align_up_to(size_t n, size_t align) {
return (n + align - 1) & ~(align - 1);
}
#define ALIGN(x) (align_up(x))
#endif // FREELIST_NOALIGN
/* Fiddle these around according to your need. Delete or check makefile */
#ifdef FREELIST_ALIGN
#define ALIGN(x) (align_up_to(x, sizeof(void *)))
#else
#define ALIGN(x) (x)
#endif
typedef struct FreeListBlock FreeListBlock;
typedef struct {
uintptr_t start;
uintptr_t end;
FreeListBlock *free;
size_t size;
size_t allocated;
uintptr_t start;
uintptr_t end;
size_t size;
size_t allocated;
} FreeList;
int fl_init(FreeList *fl, uintptr_t start, uintptr_t end, size_t itemsize);