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🚑 fix for #486

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Implemented std::less<value_t> to allow using value_t as std::map key
in MSVC.
This commit is contained in:
Niels Lohmann 2017-03-12 10:40:36 +01:00
commit 4d7c29923e
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3 changed files with 39 additions and 0 deletions
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16
src/json.hpp
View file

@ -13048,6 +13048,22 @@ struct hash<nlohmann::json>
return h(j.dump());
}
};
/// specialization for std::less<value_t>
template <>
struct less<::nlohmann::detail::value_t>
{
/*!
@brief compare two value_t enum values
@since version 3.0.0
*/
bool operator()(nlohmann::detail::value_t lhs,
nlohmann::detail::value_t rhs) const noexcept
{
return nlohmann::detail::operator<(lhs, rhs);
}
};
} // namespace std
/*!

16
src/json.hpp.re2c
View file

@ -12082,6 +12082,22 @@ struct hash<nlohmann::json>
return h(j.dump());
}
};
/// specialization for std::less<value_t>
template <>
struct less<::nlohmann::detail::value_t>
{
/*!
@brief compare two value_t enum values
@since version 3.0.0
*/
bool operator()(nlohmann::detail::value_t lhs,
nlohmann::detail::value_t rhs) const noexcept
{
return nlohmann::detail::operator<(lhs, rhs);
}
};
} // namespace std
/*!