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Add to_json() for std::vector<bool>::reference (#3534)

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Florian Albrechtskirchinger 2022-06-13 13:21:55 +02:00 committed by GitHub
parent af34396129
commit 9c31d54389
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3 changed files with 21 additions and 0 deletions
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7
include/nlohmann/detail/conversions/to_json.hpp
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@ -272,6 +272,13 @@ inline void to_json(BasicJsonType& j, T b) noexcept
external_constructor<value_t::boolean>::construct(j, b); external_constructor<value_t::boolean>::construct(j, b);
} }
template<typename BasicJsonType,
enable_if_t<std::is_convertible<const std::vector<bool>::reference&, typename BasicJsonType::boolean_t>::value, int> = 0>
inline void to_json(BasicJsonType& j, const std::vector<bool>::reference& b) noexcept
{
external_constructor<value_t::boolean>::construct(j, static_cast<typename BasicJsonType::boolean_t>(b));
}
template<typename BasicJsonType, typename CompatibleString, template<typename BasicJsonType, typename CompatibleString,
enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0> enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0>
inline void to_json(BasicJsonType& j, const CompatibleString& s) inline void to_json(BasicJsonType& j, const CompatibleString& s)

7
single_include/nlohmann/json.hpp
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@ -5253,6 +5253,13 @@ inline void to_json(BasicJsonType& j, T b) noexcept
external_constructor<value_t::boolean>::construct(j, b); external_constructor<value_t::boolean>::construct(j, b);
} }
template<typename BasicJsonType,
enable_if_t<std::is_convertible<const std::vector<bool>::reference&, typename BasicJsonType::boolean_t>::value, int> = 0>
inline void to_json(BasicJsonType& j, const std::vector<bool>::reference& b) noexcept
{
external_constructor<value_t::boolean>::construct(j, static_cast<typename BasicJsonType::boolean_t>(b));
}
template<typename BasicJsonType, typename CompatibleString, template<typename BasicJsonType, typename CompatibleString,
enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0> enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0>
inline void to_json(BasicJsonType& j, const CompatibleString& s) inline void to_json(BasicJsonType& j, const CompatibleString& s)

7
tests/src/unit-constructor1.cpp
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@ -474,6 +474,13 @@ TEST_CASE("constructors")
json j(false); json j(false);
CHECK(j.type() == json::value_t::boolean); CHECK(j.type() == json::value_t::boolean);
} }
SECTION("from std::vector<bool>::refrence")
{
std::vector<bool> v{true};
json j(v[0]);
CHECK(j.type() == json::value_t::boolean);
}
} }
SECTION("create a binary (explicit)") SECTION("create a binary (explicit)")