File: cxx-crashes.cpp

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (78 lines) | stat: -rw-r--r-- 1,146 bytes parent folder | download | duplicates (28)
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
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -verify %s
// REQUIRES: LP64

void clang_analyzer_eval(bool);

int f1(char *dst) {
  char *p = dst + 4;
  char *q = dst + 3;
  return !(q >= p);
}

long f2(char *c) {
  return long(c) & 1;
}

bool f3() {
  return !false;
}

void *f4(int* w) {
  return reinterpret_cast<void*&>(w);
}

namespace {

struct A { };
struct B {
  operator A() { return A(); }
};

A f(char *dst) {
  B b;
  return b;
}

}

namespace {

struct S {
    void *p;
};

void *f(S* w) {
    return &reinterpret_cast<void*&>(*w);
}

}

namespace {

struct C { 
  void *p;
  static void f();
};

void C::f() { }

}


void vla(int n) {
  int nums[n];
  nums[0] = 1;
  clang_analyzer_eval(nums[0] == 1); // expected-warning{{TRUE}}
  
  // This used to fail with MallocChecker on, and /only/ in C++ mode.
  // This struct is POD, though, so it should be fine to put it in a VLA.
  struct { int x; } structs[n];
  structs[0].x = 1;
  clang_analyzer_eval(structs[0].x == 1); // expected-warning{{TRUE}}
}

void useIntArray(int []);
void testIntArrayLiteral() {
  useIntArray((int []){ 1, 2, 3 });
}