Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/template/memclass3.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// PR c++/17132 template <typename T> struct has_deref { struct impl { template < typename Type, typename Type::reference (Type::*Func)(void) const> struct func_tag; template <typename Type> static char (& test( Type *, func_tag<Type, &Type::operator*> * = 0 ))[2]; static char test(void *); }; static const bool value = (sizeof(impl::test((T *) 0)) == 2); }; template <typename T> struct container { struct iterator { typedef T & reference; reference operator*() const; }; }; int main() { typedef container<int>::iterator iter; int result = has_deref<iter>::value; return result; }