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Create a concept for compatible types and use it instead of SFINAE.

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This commit is contained in:
Fredrik Sandhei 2023-10-08 13:12:54 +02:00
parent d21abfc35e
commit 1eb5d38f1c
2 changed files with 7 additions and 5 deletions
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5
include/nlohmann/detail/meta/type_traits.hpp
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@ -684,6 +684,11 @@ inline constexpr bool value_in_range_of(T val)
template<bool Value>
using bool_constant = std::integral_constant<bool, Value>;
#ifdef JSON_HAS_CPP_20
template <typename T, typename BasicJsonType>
concept CompatibleType = !is_basic_json<uncvref_t<T>>::value && is_compatible_type<BasicJsonType, uncvref_t<T>>::value;
#endif
///////////////////////////////////////////////////////////////////////////////
// is_c_string
///////////////////////////////////////////////////////////////////////////////

7
include/nlohmann/json.hpp
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@ -3694,11 +3694,8 @@ class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-spec
/// @brief comparison: equal
/// @sa https://json.nlohmann.me/api/basic_json/operator_eq/
template < typename CompatibleType,
typename U = detail::uncvref_t<CompatibleType>,
detail::enable_if_t <
!detail::is_basic_json<U>::value && detail::is_compatible_type<basic_json_t, U>::value, int > = 0 >
bool operator==(CompatibleType rhs) const noexcept
template <detail::CompatibleType<basic_json_t> T>
bool operator==(T rhs) const noexcept
{
return *this == basic_json(rhs);
}