clang/test/Parser/cxx-bad-cast-diagnose-broken-template.cpp

   1 // RUN: %clang_cc1 -fcxx-exceptions -fexceptions -fsyntax-only -verify %s
   2
   3 template<typename>
   4 struct StringTrait {};
   5
   6 template< int N >
   7 struct StringTrait< const char[ N ] > {
   8   typedef char CharType;
   9   static const MissingIntT length = N - 1; // expected-error {{unknown type name 'MissingIntT'}}
  10 };
  11
  12 class String {
  13 public:
  14   template <typename T>
  15   String(T& str, typename StringTrait<T>::CharType = 0);
  16 };
  17
  18
  19 class Exception {
  20 public:
  21   Exception(String const&);
  22 };
  23
  24 void foo() {
  25   throw Exception("some error"); // expected-error {{functional-style cast from 'const char[11]' to 'Exception' is not allowed}}
  26 }