memory.h

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#ifndef EAARLIO_MEMORY_H
#define EAARLIO_MEMORY_H

#include <stddef.h>

struct eaarlio_memory {
    void *(*malloc)(struct eaarlio_memory *self, size_t size);
    void (*free)(struct eaarlio_memory *self, void *ptr);

    void *(*realloc)(struct eaarlio_memory *self, void *ptr, size_t size);

    void *(*calloc)(struct eaarlio_memory *self, size_t nmemb, size_t size);

    void *opaque;
};

#define eaarlio_memory_empty()                                                 \
    (struct eaarlio_memory)                                                    \
    {                                                                          \
        NULL, NULL, NULL, NULL, NULL                                           \
    }

#endif