program_expr_traits.hpp

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#pragma once
#include <autoppl/util/traits/type_traits.hpp>
 
namespace ppl {
namespace util {
 
template <class Derived>
struct ProgramExprBase: BaseCRTP<Derived>
{};
 
template <class T>
inline constexpr bool program_expr_is_base_of_v =
    std::is_base_of_v<ProgramExprBase<T>, T>;
 
template <class T>
struct program_expr_traits
{};
 
#if __cplusplus <= 201703L
 
template <class T>
inline constexpr bool is_program_expr_v = 
    program_expr_is_base_of_v<T>
    ;
 
#else
 
template <class T>
concept program_expr_c =
    program_expr_is_base_of_v<T>
    ;
 
template <class T>
concept is_program_expr_v = program_expr_c<T>;
 
#endif
 
} // namespace util
} // namespace ppl