File: NewDelete-custom.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 (62 lines) | stat: -rw-r--r-- 1,657 bytes parent folder | download | duplicates (22)
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
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete,cplusplus.NewDeleteLeaks,unix.Malloc -std=c++11 -fblocks -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete,cplusplus.NewDeleteLeaks,unix.Malloc -std=c++11 -fblocks -verify %s -analyzer-config c++-allocator-inlining=false
#include "Inputs/system-header-simulator-cxx.h"

// expected-no-diagnostics


void *allocator(std::size_t size);

void *operator new[](std::size_t size) throw() { return allocator(size); }
void *operator new(std::size_t size) throw() { return allocator(size); }
void *operator new(std::size_t size, const std::nothrow_t &nothrow) throw() { return allocator(size); }
void *operator new(std::size_t, double d);

class C {
public:
  void *operator new(std::size_t);  
};

void testNewMethod() {
  void *p1 = C::operator new(0); // no warn

  C *p2 = new C; // no-warning

  C *c3 = ::new C; // no-warning
}

void testOpNewArray() {
  void *p = operator new[](0); // call is inlined, no warn
}

void testNewExprArray() {
  int *p = new int[0]; // no-warning
}


//----- Custom non-placement operators
void testOpNew() {
  void *p = operator new(0); // call is inlined, no warn
}

void testNewExpr() {
  int *p = new int; // no-warning
}

//----- Custom NoThrow placement operators
void testOpNewNoThrow() {
  void *p = operator new(0, std::nothrow); // call is inlined, no warn
}

void testNewExprNoThrow() {
  int *p = new(std::nothrow) int; // no-warning
}

//----- Custom placement operators
void testOpNewPlacement() {
  void *p = operator new(0, 0.1); // no warn
}

void testNewExprPlacement() {
  int *p = new(0.1) int; // no warn
}