This test uses std::is_integral to decide whether we are testing an
integral or floating-point type. But that fails for __int128 because
is_integral<__int128> is false in strict modes. By using
numeric_limits::is_integer instead we get the right answer for all types
that have a numeric_limits specialization.
We can also simplify the test by removing the unnecessary tag
dispatching.
libstdc++-v3/ChangeLog:
* testsuite/18_support/numeric_limits/lowest.cc: Use
numeric_limits<T>::is_integer instead of is_integral<T>::value.
// 18.2.1.1 template class numeric_limits
#include <limits>
-#include <type_traits>
#include <testsuite_hooks.h>
template<typename T>
void
- do_test(std::true_type)
+ do_test()
{
T limits_min = std::numeric_limits<T>::min();
- VERIFY( std::numeric_limits<T>::lowest() == limits_min );
- }
-
-template<typename T>
- void
- do_test(std::false_type)
- {
T limits_max = std::numeric_limits<T>::max();
- VERIFY( std::numeric_limits<T>::lowest() == -limits_max );
+ if (std::numeric_limits<T>::is_integer)
+ VERIFY( std::numeric_limits<T>::lowest() == limits_min );
+ else
+ VERIFY( std::numeric_limits<T>::lowest() == -limits_max );
}
-template<typename Tp>
- void
- do_test()
- { do_test<Tp>(typename std::is_integral<Tp>::type()); }
-
void test01()
{
do_test<char>();