File: main.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (120 lines) | stat: -rw-r--r-- 2,012 bytes parent folder | download | duplicates (3)
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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
#include <stdint.h>

int main(int argc, char const *argv[]) {
  struct LargeBitsA {
    unsigned int : 30, a : 20;
  } lba;

  struct LargeBitsB {
    unsigned int a : 1, : 11, : 12, b : 20;
  } lbb;

  struct LargeBitsC {
    unsigned int : 13, : 9, a : 1, b : 1, c : 5, d : 1, e : 20;
  } lbc;

  struct LargeBitsD {
    char arr[3];
    unsigned int : 30, a : 20;
  } lbd;

  // This case came up when debugging clang and models RecordDeclBits
  struct BitExampleFromClangDeclContext {
    class fields {
      uint64_t : 13;
      uint64_t : 9;

      uint64_t a: 1;
      uint64_t b: 1;
      uint64_t c: 1;
      uint64_t d: 1;
      uint64_t e: 1;
      uint64_t f: 1;
      uint64_t g: 1;
      uint64_t h: 1;
      uint64_t i: 1;
      uint64_t j: 1;
      uint64_t k: 1;

      // In order to reproduce the crash for this case we need the
      // members of fields to stay private :-(
      friend struct BitExampleFromClangDeclContext;
    };

    union {
      struct fields f;
    };

    BitExampleFromClangDeclContext() {
  f.a = 1;
  f.b = 0;
  f.c = 1;
  f.d = 0;
  f.e = 1;
  f.f = 0;
  f.g = 1;
  f.h = 0;
  f.i = 1;
  f.j = 0;
  f.k = 1;
    }
  } clang_example;

  class B {
  public:
    uint32_t b_a;
  };

  class D : public B {
  public:
    uint32_t d_a : 1;
  } derived;

  union union_with_bitfields {
      unsigned int a : 8;
      unsigned int b : 16;
      unsigned int c : 32;
      unsigned int x;
  } uwbf;

  union union_with_unnamed_bitfield {
   unsigned int : 16, a : 24;
   unsigned int x;
  } uwubf;

  lba.a = 2;

  lbb.a = 1;
  lbb.b = 3;

  lbc.a = 1;
  lbc.b = 0;
  lbc.c = 4;
  lbc.d = 1;
  lbc.e = 20;

  lbd.arr[0] = 'a';
  lbd.arr[1] = 'b';
  lbd.arr[2] = '\0';
  lbd.a = 5;

  derived.b_a = 2;
  derived.d_a = 1;

  uwbf.x = 0xFFFFFFFF;
  uwubf.x = 0xFFFFFFFF;

  struct BoolBits {
    bool a : 1;
    bool b : 1;
    bool c : 2;
    bool d : 2;
  } bb;

  bb.a = 0b1;
  bb.b = 0b0;
  bb.c = 0b11;
  bb.d = 0b01;

  return 0; // Set break point at this line.
}