gmp::reflectable Concept Reference

Constraint for aggregate types supported by the reflection helpers. More...

#include <meta.hpp>

Concept definition

template<typename T>
concept gmp::reflectable = 
    std::is_class_v<std::remove_cvref_t<T>> &&
    std::is_aggregate_v<std::remove_cvref_t<T>> &&
    (member_count<std::remove_cvref_t<T>>() >= 0) &&
    (member_count<std::remove_cvref_t<T>>() <= GMP_MAX_SUPPORTED_FIELDS)

Detailed Description

Note

C++20 cannot portably detect aggregate base classes or bit-fields. Types containing either may satisfy this concept, but reference-based helpers such as member_ref() and tie_members() do not support them.

Definition at line 496 of file meta.hpp.