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✨ added overload for std::vector<bool> #494

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Adds a to_json function for std::vector<bool> to allow implicit
conversion from bit vectors to basic_json.
This commit is contained in:
Niels Lohmann
2017-03-11 15:32:44 +01:00
parent 758c4addc1
commit f5f6dac800
3 changed files with 47 additions and 0 deletions
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19
src/json.hpp
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@ -324,6 +324,19 @@ struct external_constructor<value_t::array>
j.m_value.array = j.template create<typename BasicJsonType::array_t>(begin(arr), end(arr));
j.assert_invariant();
}
template<typename BasicJsonType>
static void construct(BasicJsonType& j, const std::vector<bool>& arr)
{
j.m_type = value_t::array;
j.m_value = value_t::array;
j.m_value.array->reserve(arr.size());
for (bool x : arr)
{
j.m_value.array->push_back(x);
}
j.assert_invariant();
}
};
template<>
@ -562,6 +575,12 @@ void to_json(BasicJsonType& j, UnscopedEnumType e) noexcept
external_constructor<value_t::number_integer>::construct(j, e);
}
template<typename BasicJsonType>
void to_json(BasicJsonType& j, std::vector<bool> e) noexcept
{
external_constructor<value_t::array>::construct(j, e);
}
template <
typename BasicJsonType, typename CompatibleArrayType,
enable_if_t <