tmp/tmpzse343hk/{from.md → to.md}
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#### Class template `bit_not` <a id="bitwise.operations.not">[[bitwise.operations.not]]</a>
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``` cpp
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template <class T = void> struct bit_not {
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constexpr T operator()(const T& x) const;
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};
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```
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``` cpp
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constexpr T operator()(const T& x) const;
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```
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*Returns:* `~x`.
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``` cpp
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template <> struct bit_not<void> {
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template <class T> constexpr auto operator()(T&& t) const
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-> decltype(~std::forward<T>(t));
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using is_transparent = unspecified;
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};
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```
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``` cpp
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template <class T> constexpr auto operator()(T&&) const
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-> decltype(~std::forward<T>(t));
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```
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*Returns:* `~std::forward<T>(t)`.
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