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// Copyright (c) 2015 YamaArashi
#ifndef GLOBAL_H
#define GLOBAL_H
#include <stdio.h>
#include <stdlib.h>
#ifdef _MSC_VER
#define FATAL_ERROR(format, ...) \
do { \
fprintf(stderr, format, __VA_ARGS__); \
exit(1); \
} while (0)
#define UNUSED
#else
#define FATAL_ERROR(format, ...) \
do { \
fprintf(stderr, format, ##__VA_ARGS__); \
exit(1); \
} while (0)
#define UNUSED __attribute__((__unused__))
#endif // _MSC_VER
#define PTR_ADD(ptr, value) ((void*)((uintptr_t)(ptr) + (value)))
#define PTR_SUB(ptr, value) ((void*)((uintptr_t)(ptr) - (value)))
#define PTR_IADD(ptr, value) do { (ptr) = PTR_ADD(ptr, value); } while (0)
#define PTR_ISUB(ptr, value) do { (ptr) = PTR_SUB(ptr, value); } while (0)
#define PTR_DIFF(right, left) ((uintptr_t)(right) - (uintptr_t)(left))
#endif // GLOBAL_H
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