File: virtual-member-functions-key-function.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (60 lines) | stat: -rw-r--r-- 1,678 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
// RUN: %clang_cc1 -fsyntax-only -verify %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s

struct A {
  virtual ~A();
#if __cplusplus >= 201103L
// expected-note@-2 2 {{overridden virtual function is here}}
#endif
};

struct B : A {
#if __cplusplus <= 199711L
// expected-error@-2 {{no suitable member 'operator delete' in 'B'}}
#else
// expected-error@-4 {{deleted function '~B' cannot override a non-deleted function}}
// expected-note@-5  {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
#endif
  B() { }
#if __cplusplus <= 199711L
// expected-note@-2 {{implicit destructor for 'B' first required here}}
#endif

  void operator delete(void *, int);
#if __cplusplus <= 199711L
// expected-note@-2 {{'operator delete' declared here}}
#endif
}; 

struct C : A {
#if __cplusplus <= 199711L
// expected-error@-2 {{no suitable member 'operator delete' in 'C'}}
#else
// expected-error@-4 {{deleted function '~C' cannot override a non-deleted function}}
// expected-note@-5  {{virtual destructor requires an unambiguous, accessible 'operator delete'}}
#endif
  void operator delete(void *, int);
#if __cplusplus <= 199711L
// expected-note@-2 {{'operator delete' declared here}}
#endif
}; 

void f() {
  (void)new B; 
  (void)new C;
#if __cplusplus <= 199711L
// expected-note@-2 {{implicit destructor for 'C' first required here}}
#endif
}

// Make sure that the key-function computation is consistent when the
// first virtual member function of a nested class has an inline body.
struct Outer {
  struct Inner {
    virtual void f() { }
    void g();
  };
};

void Outer::Inner::g() { }