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Explicit underlying cast #6

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Explicit underlying cast #6

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47c9513
Value initialization of underlying value + enable explicit cast to un…
Nov 7, 2017
9a21407
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Nov 7, 2017
cbc5e71
Merge branch 'master' into explicit-underlying-cast
Nov 7, 2017
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8 changes: 6 additions & 2 deletions named_type.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@ class NamedTypeImpl : public Skills<NamedTypeImpl<T, Parameter, Converter, Skill
using UnderlyingType = T;

// constructor
NamedTypeImpl() = default;
explicit NamedTypeImpl(T const& value) : value_(value) {}
template<typename T_ = T>
explicit NamedTypeImpl(T&& value, typename std::enable_if<!std::is_reference<T_>::value, std::nullptr_t>::type = nullptr) : value_(std::move(value)) {}
Expand All @@ -31,6 +32,9 @@ class NamedTypeImpl : public Skills<NamedTypeImpl<T, Parameter, Converter, Skill
T& get() { return value_; }
T const& get() const {return value_; }

// explicit cast to underlying
explicit operator T() const { return value_; }

// conversions
template <typename Converter2>
operator NamedTypeImpl<T, Parameter, Converter2, Skills...>() const
Expand All @@ -52,7 +56,7 @@ class NamedTypeImpl : public Skills<NamedTypeImpl<T, Parameter, Converter, Skill
};

private:
T value_;
T value_{};
};

template <typename T, typename Parameter, template<typename> class... Skills>
Expand All @@ -69,7 +73,7 @@ StrongType<T> make_named(T const& value)
{
return StrongType<T>(value);
}

} // namespace fluent

#endif