File: cxx23-init-statement.cpp

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (33 lines) | stat: -rw-r--r-- 922 bytes parent folder | download | duplicates (11) 
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
 
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++23 %s

namespace GH63627 {
template<class T>
void ok() {
  if  (using U = decltype([]{ return 42;}); true) {
      static_assert(U{}() == 42);
  }
  for (using U = decltype([]{ return 42;}); [[maybe_unused]] auto x : "abc") {
      static_assert(U{}() == 42);
  }
  for (using U = decltype([]{ return 42;}); false; ) {
      static_assert(U{}() == 42);
  }
}

template<class T>
void err() {
  if  (using U = decltype([]{}.foo); true) {}  // expected-error {{no member named 'foo'}}

  for (using U = decltype([]{}.foo);          // expected-error {{no member named 'foo'}}
       [[maybe_unused]] auto x : "abc") { }

  for (using U = decltype([]{}.foo);          // expected-error {{no member named 'foo'}}
       false ; ) { }
};

void test() {
  ok<int>();
  err<int>(); // expected-note {{in instantiation of function template specialization 'GH63627::err<int>'}}
}

}