Enable if

This commit is contained in:
Simon Brand
2017-10-26 21:10:09 +01:00
parent 16b4249947
commit 3974935bdb

View File

@@ -17,6 +17,11 @@
#include <type_traits> #include <type_traits>
namespace tl { namespace tl {
namespace detail {
template <bool E, class T = void>
using enable_if_t = typename std::enable_if<E, T>::type;
}
template <class E> template <class E>
class unexpected { class unexpected {
public: public: