44 #include <meta/meta.hpp> 69 template <
typename type_t,
typename default_t>
70 using transformation_trait_or = std::conditional_t<meta::is_trait<type_t>::value,
78 template <
typename type_t,
typename default_t>
Definition: aligned_sequence_concept.hpp:288
Provides C++20 additions to the type_traits header.
The identity transformation (a TransformationTrait that returns the input).
Definition: type_traits:59