File: copy-initialization.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 (82 lines) | stat: -rw-r--r-- 1,977 bytes parent folder | download | duplicates (9)
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
// 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

class X {
public:
  explicit X(const X&); // expected-note 2{{not a candidate}}
  X(int*); // expected-note 3{{candidate constructor}}
  explicit X(float*); // expected-note {{candidate constructor}} expected-note 2{{not a candidate}}
};

class Y : public X { };

void f(Y y, int *ip, float *fp) {
  X x1 = y; // expected-error{{no matching constructor for initialization of 'X'}}
  X x2 = 0;
  X x3 = ip;
  X x4 = fp; // expected-error{{no viable conversion}}
  X x2a(0); // expected-error{{call to constructor of 'X' is ambiguous}}
  X x3a(ip);
  X x4a(fp);
}

struct foo {
 void bar(); // expected-note{{declared here}}
};

// PR3600
void test(const foo *P) { P->bar(); } // expected-error{{'this' argument to member function 'bar' has type 'const foo', but function is not marked const}}

namespace PR6757 {
  struct Foo {
    Foo(); // expected-note{{not viable}}
    Foo(Foo&); // expected-note{{candidate constructor not viable}}
  };

  struct Bar {
    operator const Foo&() const;
  };

  void f(Foo);

  void g(Foo foo) {
    f(Bar()); // expected-error{{no viable constructor copying parameter of type 'const PR6757::Foo'}}
    f(foo);
  }
}

namespace DR5 {
  // Core issue 5: if a temporary is created in copy-initialization, it is of
  // the cv-unqualified version of the destination type.
  namespace Ex1 {
    struct C { };
    C c;
    struct A {
        A(const A&);
        A(const C&);
    };
    const volatile A a = c; // ok
  }

  namespace Ex2 {
    struct S {
      S(S&&);
#if __cplusplus <= 199711L // C++03 or earlier modes
      // expected-warning@-2 {{rvalue references are a C++11 extension}}
#endif
      S(int);
    };
    const S a(0);
    const S b = 0;
  }
}

struct A {};
struct B : A {
  B();
  B(B&);
  B(A);
  B(int);
};
B b = 0; // ok, calls B(int) then A(const A&) then B(A).