File: typename1.C

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (42 lines) | stat: -rw-r--r-- 951 bytes parent folder | download | duplicates (2) 
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
 
// P0634R3
// { dg-do compile { target c++20 } }

// OK, return type of a function declaration at global scope.
template<class T> T::R f();

// Ill-formed (no diagnostic required), attempt to declare
// a void variable template
template<class T> void f(T::R); // { dg-error "declared void" }

template <class T> struct A;
template <class T> using B = A<T>::U;

template<typename T>
struct PtrTraits { typedef int Ptr; };

template<class T> struct S {
  // OK, in a defining-type-id.
  using Ptr = PtrTraits<T>::Ptr;

  // OK, trailing-return-type.
  auto g() -> S<T*>::Ptr;

  // OK, class scope
  T::R
  f (T::P p)
  {
    // OK, type-id of a static_cast
    return static_cast<T::R>(p);
  }
};

template<typename T>
void f ()
{
  // Variable pf of type void* initialized with T::X
  void (*pf)(T::X);

  // Error: T::X at block scope does not denote a type
  // (attempt to declare a void variable)
  void g(T::X); // { dg-error "declared void" }
}