Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/cpp0x/variadic-crash1.C @ 111:04ced10e8804
gcc 7
author | kono |
---|---|
date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children |
line wrap: on
line source
// { dg-do compile { target c++11 } } #define ONE #define TWO #define THREE struct Something {}; Something ___; template <class F> struct Trial { F f; public: Trial() : f() {} Trial( const F& ff ) : f(ff) { } template <typename... Args> struct Sig { typedef int ResultType; }; template <typename... Args> struct Sig<Something,Args...> { typedef int ResultType; }; #ifdef ONE template <typename... Args> typename Sig<Something,Args...>::ResultType operator()(const Something& s, const Args&... args) const { return f(args...); } #endif #ifdef TWO template <typename... Args> typename Sig<Args...>::ResultType operator()(const Args&... args) const { return f(args...); } #endif }; struct Internal { template <typename... Args> struct Sig { typedef int ResultType; }; template <typename... Args> struct Sig<Something,Args...> { typedef int ResultType; }; template <typename... Args> int operator()(const Args&... args) const { int n = sizeof...(Args); return n; } static Trial<Internal>& full() { static Trial<Internal> f; return f; } }; static Trial<Internal>& internal = Internal::full(); int main() { int n = 0; #ifdef ONE n = internal(___,1,2); #endif #ifdef THREE n = internal(___,1,2,3); n = internal(___,1,2,3,4); #endif return 0; }