50 lines
1.3 KiB
Markdown
50 lines
1.3 KiB
Markdown
[comparisons.not.equal.to]
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# 22 General utilities library [[utilities]](./#utilities)
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## 22.10 Function objects [[function.objects]](function.objects#comparisons.not.equal.to)
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### 22.10.8 Comparisons [[comparisons]](comparisons#not.equal.to)
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#### 22.10.8.3 Class template not_equal_to [comparisons.not.equal.to]
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[ð](#lib:not_equal_to)
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`template<class T = void> struct not_equal_to {
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constexpr bool operator()(const T& x, const T& y) const;
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};
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`
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[ð](#lib:operator(),not_equal_to)
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`constexpr bool operator()(const T& x, const T& y) const;
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`
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/utilities.tex#L12338)
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*Returns*: x != y[.](#1.sentence-1)
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[ð](#lib:not_equal_to%3c%3e)
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`template<> struct not_equal_to<void> {
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template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
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-> decltype(std::forward<T>(t) != std::forward<U>(u));
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using is_transparent = unspecified;
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};
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`
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[ð](#lib:operator(),not_equal_to%3c%3e)
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`template<class T, class U> constexpr auto operator()(T&& t, U&& u) const
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-> decltype(std::forward<T>(t) != std::forward<U>(u));
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`
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/utilities.tex#L12360)
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*Returns*: std::forward<T>(t) != std::forward<U>(u)[.](#2.sentence-1)
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