File: new-with-exceptions.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (53 lines) | stat: -rw-r--r-- 1,716 bytes parent folder | download | duplicates (15)
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
// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-store region -std=c++11 -fexceptions -fcxx-exceptions -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -analyzer-store region -std=c++11 -verify %s

void clang_analyzer_eval(bool);

typedef __typeof__(sizeof(int)) size_t;
extern "C" void *malloc(size_t);

// This is the standard placement new.
inline void* operator new(size_t, void* __p) throw()
{
  return __p;
}

struct NoThrow {
  void *operator new(size_t) throw();
};

struct NoExcept {
  void *operator new(size_t) noexcept;
};

struct DefaultThrow {
  void *operator new(size_t);
};

struct ExplicitThrow {
  void *operator new(size_t) throw(int);
};

void testNew() {
  clang_analyzer_eval(new NoThrow); // expected-warning{{UNKNOWN}}
  clang_analyzer_eval(new NoExcept); // expected-warning{{UNKNOWN}}

  clang_analyzer_eval(new DefaultThrow); // expected-warning{{TRUE}}
  clang_analyzer_eval(new ExplicitThrow); // expected-warning{{TRUE}}
}

void testNewArray() {
  clang_analyzer_eval(new NoThrow[2]); // expected-warning{{TRUE}}
  clang_analyzer_eval(new NoExcept[2]); // expected-warning{{TRUE}}
  clang_analyzer_eval(new DefaultThrow[2]); // expected-warning{{TRUE}}
  clang_analyzer_eval(new ExplicitThrow[2]); // expected-warning{{TRUE}}
}

extern void *operator new[](size_t, int) noexcept;

void testNewArrayNoThrow() {
  clang_analyzer_eval(new (1) NoThrow[2]); // expected-warning{{UNKNOWN}}
  clang_analyzer_eval(new (1) NoExcept[2]); // expected-warning{{UNKNOWN}}
  clang_analyzer_eval(new (1) DefaultThrow[2]); // expected-warning{{UNKNOWN}}
  clang_analyzer_eval(new (1) ExplicitThrow[2]); // expected-warning{{UNKNOWN}}
}