File: struct-layout-1.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (77 lines) | stat: -rw-r--r-- 956 bytes parent folder | download | duplicates (10) 
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
 
/* { dg-do run } */
/* { dg-options "-std=gnu99" } */

/* This test is based on the test from ../dfp/.  */

#include <stdarg.h>

extern void abort (void);

struct S1
{
  long _Fract a[0];
};

struct S2
{
  struct
  {
    long _Fract e;
  } b[0];
};

struct S3
{
  union
  {
    long _Fract c;
  } a[0];
};

struct S4
{
  int a[0];
  long _Fract b[0];
};

struct S5
{
  union
  {
    long _Fract c[0];
  } a;
};

int check_var (int z, ...)
{
  long long result;
  va_list ap;
  va_start (ap, z);
  va_arg (ap, struct S1);
  result = va_arg (ap, long long);
  va_end (ap);

  return (result == 2LL);
}

int main ()
{
  struct S1 s1;
  struct S2 s2;
  struct S3 s3;
  struct S4 s4;
  struct S5 s5;

  if (check_var (2, s1, 2LL) == 0)
    abort ();
  if (check_var (2, s2, 2LL) == 0)
    abort ();
  if (check_var (2, s3, 2LL) == 0)
    abort ();
  if (check_var (2, s4, 2LL) == 0)
    abort ();
  if (check_var (2, s5, 2LL) == 0)
    abort ();

  return 0;
}