Viewing file:  is_pod.C (1.11 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
// { dg-do run { target c++11 } }
#include <cassert>
struct A
{
double a;
double b;
};
struct B
{
B() { }
};
struct C
: public A { };
template<typename T>
bool
f()
{ return __is_pod(T); }
template<typename T>
class My
{
public:
bool
f()
{ return !!__is_pod(T); }
};
template<typename T>
class My2
{
public:
static const bool trait = __is_pod(T);
};
template<typename T>
const bool My2<T>::trait;
template<typename T, bool b = __is_pod(T)>
struct My3_help
{ static const bool trait = b; };
template<typename T, bool b>
const bool My3_help<T, b>::trait;
template<typename T>
class My3
{
public:
bool
f()
{ return My3_help<T>::trait; }
};
#define PTEST(T) (__is_pod(T) && f<T>() \
&& My<T>().f() && My2<T>::trait && My3<T>().f())
#define NTEST(T) (!__is_pod(T) && !f<T>() \
&& !My<T>().f() && !My2<T>::trait && !My3<T>().f())
int main()
{
assert (PTEST (int));
assert (NTEST (void));
assert (PTEST (A));
assert (PTEST (A[]));
assert (NTEST (B));
assert (PTEST (C));
assert (PTEST (C[]));
return 0;
}
|
