lib/json
1
0
Fork 0
mirror of https://github.com/nlohmann/json.git synced 2025-07-28 12:02:00 +03:00
Code Activity

♻️ overwork std specializations (#3121)

Browse Source
This commit is contained in:
Niels Lohmann
2021-11-04 16:38:40 +01:00
committed by GitHub
parent 5d87c4d409
commit 5c08a52fd6
3 changed files with 73 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
include/nlohmann/json.hpp
View File

@ -8936,20 +8936,19 @@ std::string to_string(const NLOHMANN_BASIC_JSON_TPL& j)
// nonmember support //
///////////////////////
// specialization of std::swap, and std::hash
namespace std
namespace std // NOLINT(cert-dcl58-cpp)
{
/// hash value for JSON objects
template<>
struct hash<nlohmann::json>
NLOHMANN_BASIC_JSON_TPL_DECLARATION
struct hash<nlohmann::NLOHMANN_BASIC_JSON_TPL>
{
/*!
@brief return a hash value for a JSON object
@since version 1.0.0
@since version 1.0.0, extended for arbitrary basic_json types in 3.10.5.
*/
std::size_t operator()(const nlohmann::json& j) const
std::size_t operator()(const nlohmann::NLOHMANN_BASIC_JSON_TPL& j) const
{
return nlohmann::detail::hash(j);
}
@ -8959,7 +8958,7 @@ struct hash<nlohmann::json>
/// @note: do not remove the space after '<',
/// see https://github.com/nlohmann/json/pull/679
template<>
struct less<::nlohmann::detail::value_t>
struct less< ::nlohmann::detail::value_t>
{
/*!
@brief compare two value_t enum values
@ -8978,13 +8977,12 @@ struct less<::nlohmann::detail::value_t>
/*!
@brief exchanges the values of two JSON objects
@since version 1.0.0
@since version 1.0.0, extended for arbitrary basic_json types in 3.10.5.
*/
template<>
inline void swap<nlohmann::json>(nlohmann::json& j1, nlohmann::json& j2) noexcept( // NOLINT(readability-inconsistent-declaration-parameter-name)
is_nothrow_move_constructible<nlohmann::json>::value&& // NOLINT(misc-redundant-expression)
is_nothrow_move_assignable<nlohmann::json>::value
)
NLOHMANN_BASIC_JSON_TPL_DECLARATION
inline void swap(nlohmann::NLOHMANN_BASIC_JSON_TPL& j1, nlohmann::NLOHMANN_BASIC_JSON_TPL& j2) noexcept( // NOLINT(readability-inconsistent-declaration-parameter-name)
is_nothrow_move_constructible<nlohmann::NLOHMANN_BASIC_JSON_TPL>::value&& // NOLINT(misc-redundant-expression)
is_nothrow_move_assignable<nlohmann::NLOHMANN_BASIC_JSON_TPL>::value)
{
j1.swap(j2);
}