1#include "config.h"
2#include <stdio.h>
3#include <string.h>
4
5/**
6 * endian - endian conversion macros for simple types
7 *
8 * Portable protocols (such as on-disk formats, or network protocols)
9 * are often defined to be a particular endian: little-endian (least
10 * significant bytes first) or big-endian (most significant bytes
11 * first).
12 *
13 * Similarly, some CPUs lay out values in memory in little-endian
14 * order (most commonly, Intel's 8086 and derivatives), or big-endian
15 * order (almost everyone else).
16 *
17 * This module provides conversion routines, inspired by the linux kernel.
18 * It also provides leint32_t, beint32_t etc typedefs, which are annotated for
19 * the sparse checker.
20 *
21 * Example:
22 *	#include <stdio.h>
23 *	#include <err.h>
24 *	#include <ccan/endian/endian.h>
25 *
26 *	//
27 *	int main(int argc, char *argv[])
28 *	{
29 *		uint32_t value;
30 *
31 *		if (argc != 2)
32 *			errx(1, "Usage: %s <value>", argv[0]);
33 *
34 *		value = atoi(argv[1]);
35 *		printf("native:        %08x\n", value);
36 *		printf("little-endian: %08x\n", cpu_to_le32(value));
37 *		printf("big-endian:    %08x\n", cpu_to_be32(value));
38 *		printf("byte-reversed: %08x\n", bswap_32(value));
39 *		exit(0);
40 *	}
41 *
42 * License: License: CC0 (Public domain)
43 * Author: Rusty Russell <rusty@rustcorp.com.au>
44 */
45int main(int argc, char *argv[])
46{
47	if (argc != 2)
48		return 1;
49
50	if (strcmp(argv[1], "depends") == 0)
51		/* Nothing */
52		return 0;
53
54	return 1;
55}
56