Viewing file:  pr70271.C (985 B) -rw-r--r--
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// { dg-do compile }
template <typename Function>
struct function_traits
: public function_traits<decltype(&Function::operator())>
{ };
template <typename ClassType, typename ReturnType, typename... Args>
struct function_traits<ReturnType(ClassType::*)(Args...) const>
{
typedef ReturnType (*pointer)(Args...);
typedef ReturnType return_type;
};
template <typename Function>
typename function_traits<Function>::pointer
FunctionPointer (const Function& lambda)
{
return static_cast<typename function_traits<Function>::pointer>(lambda);
}
template <typename Function>
typename function_traits<Function>::return_type
GetReturnValue (Function func)
{
typename function_traits<Function>::return_type *dummy;
return *dummy;
}
template <typename T> class ClassFoo {};
template <typename T> void FuncBar () { }
template <> inline void FuncBar<double> ()
{
typedef void (*func_type)(ClassFoo<double> &);
func_type f1 = FunctionPointer ([](ClassFoo<double> & ref) { });
}
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