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| /*
| * is-little-endian.c
| */
|
| #include <stdio.h>
| #include <stdint.h>
| #include <stdlib.h>
| #include <inttypes.h>
| #include <byteswap.h>
|
| typedef unsigned char* byte_pointer;
|
| int is_little_endian() {
| int test_num = 0xff;
| byte_pointer byte_start = (byte_pointer) &test_num;
|
| if (byte_start[0] == 0xff) {
| return 1;
| }
| return 0;
| }
|
|
| int
| main(int argc, char *argv[])
| {
| uint64_t x;
|
| if (argc != 2) {
| fprintf(stderr, "Usage: %s <num>\n", argv[0]);
| exit(EXIT_FAILURE);
| }
|
| x = strtoul(argv[1], NULL, 0);
| printf("0x%" PRIx64 " ==> 0x%" PRIx64 "\n", x, bswap_64(x));
|
| exit(EXIT_SUCCESS);
| }
|
|
