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#ifndef FVM_UTILS_H_
#define FVM_UTILS_H_
#include <stdlib.h>
struct allocator;
typedef struct allocator allocator;
struct result {
void *value;
const char* errmsg;
};
typedef struct result result;
#define unwrap(x__) ({ \
struct result res__ = (x__); \
if (res__.errmsg != NULL) return res__; \
res__.value;})
result ok(void *value);
result err(const char *errmsg);
allocator* new_allocator();
void delete_allocator(allocator* allocator);
void* allocate(allocator* allocator, size_t size);
char* safe_sprintf(allocator* alct, const char* format, ...);
#endif // FVM_UTILS_H_
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