1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/*
* Copyright (c) 2007 Wayne Meissner. All rights reserved.
*
* For licensing, see LICENSE.SPECS
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
typedef char s8;
typedef short s16;
typedef int s32;
typedef long long s64;
typedef float f32;
typedef double f64;
typedef union union_test {
char b;
short s;
int i;
long long j;
long l;
float f;
double d;
s8 a[10];
} union_test_t;
#define T(x, type) \
type union_align_##type(union_test_t* u) { return u->x; } \
union_test_t* union_make_union_with_##type(type value) { static union_test_t u; u.x = value; return &u; }
T(b, s8);
T(s, s16);
T(i, s32);
T(j, s64);
T(f, f32);
T(d, f64);
T(l, long);
unsigned int union_size() { return sizeof(union_test_t); }
|
