traits.h

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/*
 *
 *    Copyright (c) 2024
 *      SMASH Team
 *
 *    GNU General Public License (GPLv3 or later)
 *
 */
 
#ifndef SRC_INCLUDE_SMASH_TRAITS_H_
#define SRC_INCLUDE_SMASH_TRAITS_H_
 
#include <sstream>
#include <type_traits>
 
namespace smash {
 
template <typename S, typename T, typename = void>
struct is_writable_to_stream : std::false_type {};
 
template <typename S, typename T>
struct is_writable_to_stream<
    S, T, std::void_t<decltype(std::declval<S&>() << std::declval<T>())>>
    : std::true_type {};
 
template <typename S, typename T>
inline constexpr bool is_writable_to_stream_v =
    is_writable_to_stream<S, T>::value;
 
}  // namespace smash
 
#endif  // SRC_INCLUDE_SMASH_TRAITS_H_