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#ifndef _HEAP_H_
#define _HEAP_H_
#include <stddef.h>
#include <stdint.h>
#include "value.h"
#include "value_slice.h"
struct heap {
// The heap is divided into two halves for garbage collection.
// buf holds the malloc'd heap buffer.
value *buf;
// active and standby are slices that partition buf.
value_slice active;
value_slice standby;
size_t free_ptr;
size_t last_free;
value_slice gc_roots;
};
struct heap new_heap(value_slice);
value *alloc(struct heap *, int64_t);
#endif
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