clang/test/SemaCXX/for-range-crash.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++17 %s
   2
   3 // Ensure that we don't crash if errors are suppressed by an error limit.
   4 // RUN: not %clang_cc1 -fsyntax-only -std=c++17 -ferror-limit=1 %s
   5
   6 error e; // expected-error {{unknown type name}}
   7
   8 template <typename>
   9 class Bar {
  10   Bar<int> *variables_to_modify;
  11   foo() { // expected-error {{a type specifier is required for all declarations}}
  12     for (auto *c : *variables_to_modify)
  13       delete c;
  14   }
  15 };
  16
  17 void foo() {
  18   int a;
  19   struct X; // expected-note {{forward declaration}}
  20   for (X x // expected-error {{incomplete type}}
  21       : a) { // expected-error {{range expression of type 'int'}}
  22     constexpr int n = sizeof(x);
  23   }
  24
  25   struct S { int x, y; };
  26   for (S [x, y] // expected-error {{must be 'auto'}}
  27       : a) { // expected-error {{range expression}}
  28     typename decltype(x)::a b;
  29   }
  30 }