1 /* typecard - prints basic C types and their sizes.
2 * Used for the eschalot development and cross-platform testing. */
3
4 /*
5 * Copyright (c) 2013 Unperson Hiro <blacksunhq56imku.onion>
6 *
7 * Permission to use, copy, modify, and distribute this software for any
8 * purpose with or without fee is hereby granted, provided that the above
9 * copyright notice and this permission notice appear in all copies.
10 *
11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 */
19
20 #include <ctype.h>
21 #include <inttypes.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <unistd.h>
26
27 int
main(int argc,char * argv[])28 main(int argc, char *argv[]) {
29 printf("\n");
30 #ifdef __LP64__
31 printf("System: 64 bit\n");
32 #else
33 printf("System: 32 bit\n");
34 #endif
35
36 #if BYTE_ORDER == BIG_ENDIAN
37 printf("Host byte order: Big Endian\n");
38 #endif
39 #if BYTE_ORDER == LITTLE_ENDIAN
40 printf("Host byte order: Little Endian\n");
41 #endif
42 printf("\n");
43 printf("char:\t\t%2d (%3d bits)\n", sizeof(char), sizeof(char) * 8);
44 printf("short:\t\t%2d (%3d bits)\n", sizeof(short), sizeof(short) * 8);
45 printf("int:\t\t%2d (%3d bits)\n", sizeof(int), sizeof(int) * 8);
46 printf("long:\t\t%2d (%3d bits)\n", sizeof(long), sizeof(long) * 8);
47 printf("long long:\t%2d (%3d bits)\n", sizeof(long long), sizeof(long long) * 8);
48 printf("\n");
49
50 printf("float:\t\t%2d (%3d bits)\n", sizeof(float), sizeof(float) * 8);
51 printf("double:\t\t%2d (%3d bits)\n", sizeof(double), sizeof(double) * 8);
52 printf("long double:\t%2d (%3d bits)\n", sizeof(long double), sizeof(long double) * 8);
53 printf("\n");
54
55 printf("wchar_t:\t%2d (%3d bits)\n", sizeof(wchar_t), sizeof(wchar_t) * 8);
56 printf("size_t:\t\t%2d (%3d bits)\n", sizeof(size_t), sizeof(size_t) * 8);
57 printf("_Bool:\t\t%2d (%3d bits)\n", sizeof(_Bool), sizeof(_Bool) * 8);
58 printf("\n");
59
60 printf("int8_t:\t\t%2d (%3d bits)\n", sizeof(int8_t), sizeof(int8_t) * 8);
61 printf("int16_t:\t%2d (%3d bits)\n", sizeof(int16_t), sizeof(int16_t) * 8);
62 printf("int32_t:\t%2d (%3d bits)\n", sizeof(int32_t), sizeof(int32_t) * 8);
63 printf("int64_t:\t%2d (%3d bits)\n", sizeof(int64_t), sizeof(int64_t) * 8);
64 #ifdef __LP64__
65 printf("__int128_t:\t%2d (%3d bits)\n", sizeof(__int128_t), sizeof(__int128_t) * 8);
66 printf("\n");
67 #endif
68 printf("int_fast8_t:\t%2d (%3d bits)\n", sizeof(int_fast8_t), sizeof(int_fast8_t) * 8);
69 printf("int_fast16_t:\t%2d (%3d bits)\n", sizeof(int_fast16_t), sizeof(int_fast16_t) * 8);
70 printf("int_fast32_t:\t%2d (%3d bits)\n", sizeof(int_fast32_t), sizeof(int_fast32_t) * 8);
71 printf("int_fast64_t:\t%2d (%3d bits)\n", sizeof(int_fast64_t), sizeof(int_fast64_t) * 8);
72 printf("\n");
73 printf("int_least8_t:\t%2d (%3d bits)\n", sizeof(int_least8_t), sizeof(int_least8_t) * 8);
74 printf("int_least16_t:\t%2d (%3d bits)\n", sizeof(int_least16_t), sizeof(int_least16_t) * 8);
75 printf("int_least32_t:\t%2d (%3d bits)\n", sizeof(int_least32_t), sizeof(int_least32_t) * 8);
76 printf("int_least64_t:\t%2d (%3d bits)\n", sizeof(int_least64_t), sizeof(int_least64_t) * 8);
77 printf("\n");
78 printf("intmax_t:\t%2d (%3d bits)\n", sizeof(intmax_t), sizeof(intmax_t) * 8);
79 }
80
81
82