gists/c-programming/io/fwrite_le.h

/*
 * fwrite_le.h
 *
 * Author: Intel A80486DX2-66
 * License: Unlicense
 */

#ifndef _FWRITE_LE_H
#define _FWRITE_LE_H

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define FWRITE_LE_NO_MODIFICATION 0

#define DETECTED_LITTLE_ENDIAN 0
#define DETECTED_BIG_ENDIAN 1
#define UNSUPPORTED_ENDIANNESS -1

#define ORDER_NATIVE_U32 0x01234567
#define ORDER_LITTLE_ENDIAN_S4 "\x67\x45\x23\x01"
#define ORDER_BIG_ENDIAN_S4 "\x01\x23\x45\x67"
#define ifeq_b32_ret(lhs, rhs, value) if (!memcmp(lhs, rhs, 4)) return value;

int detect_endianness(void);
size_t fwrite_le(
#if FWRITE_LE_NO_MODIFICATION
	const
#endif
	void* ptr, size_t size, size_t count, FILE* stream);
void reorder_le_be(
#if FWRITE_LE_NO_MODIFICATION
	uint8_t* dest, uint8_t* src,
#else
	uint8_t* bytes,
#endif
	size_t count, size_t step);

#endif /* _FWRITE_LE_H */