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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [g++.dg/] [cpp0x/] [decltype5.C] - Rev 320
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// { dg-do "compile" }
// { dg-options "-std=gnu++0x" }
template<typename T, typename U>
struct is_same
{
static const bool value = false;
};
template<typename T>
struct is_same<T, T>
{
static const bool value = true;
};
#define CHECK_DECLTYPE(DECLTYPE,RESULT) \
static_assert(is_same< DECLTYPE , RESULT >::value, #RESULT)
template<typename F> F create_a();
template<typename F, typename T1>
decltype(create_a<F&>()(create_a<const T1&>())) forward(F f, const T1& a1)
{
return f(a1);
}
struct identity {
template<typename T>
const T& operator()(const T& x) { return x; }
};
identity id;
int i;
float f;
CHECK_DECLTYPE(decltype(forward(id, i)), const int&);
CHECK_DECLTYPE(decltype(forward(id, f)), const float&);
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