| #include <stdio.h> |
| #include <string.h> |
| #include "config.h" |
| |
| /** |
| * endian - endian conversion macros for simple types |
| * |
| * Portable protocols (such as on-disk formats, or network protocols) |
| * are often defined to be a particular endian: little-endian (least |
| * significant bytes first) or big-endian (most significant bytes |
| * first). |
| * |
| * Similarly, some CPUs lay out values in memory in little-endian |
| * order (most commonly, Intel's 8086 and derivatives), or big-endian |
| * order (almost everyone else). |
| * |
| * This module provides conversion routines, inspired by the linux kernel. |
| * |
| * Example: |
| * #include <stdio.h> |
| * #include <err.h> |
| * #include <ccan/endian/endian.h> |
| * |
| * // |
| * int main(int argc, char *argv[]) |
| * { |
| * uint32_t value; |
| * |
| * if (argc != 2) |
| * errx(1, "Usage: %s <value>", argv[0]); |
| * |
| * value = atoi(argv[1]); |
| * printf("native: %08x\n", value); |
| * printf("little-endian: %08x\n", cpu_to_le32(value)); |
| * printf("big-endian: %08x\n", cpu_to_be32(value)); |
| * printf("byte-reversed: %08x\n", bswap_32(value)); |
| * exit(0); |
| * } |
| * |
| * License: License: CC0 (Public domain) |
| * Author: Rusty Russell <rusty@rustcorp.com.au> |
| */ |
| int main(int argc, char *argv[]) |
| { |
| if (argc != 2) |
| return 1; |
| |
| if (strcmp(argv[1], "depends") == 0) |
| /* Nothing */ |
| return 0; |
| |
| return 1; |
| } |