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cppdraft/valarray/unary.md

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+[valarray.unary]
+
+# 29 Numerics library [[numerics]](./#numerics)
+
+## 29.6 Numeric arrays [[numarray]](numarray#valarray.unary)
+
+### 29.6.2 Class template valarray [[template.valarray]](template.valarray#valarray.unary)
+
+#### 29.6.2.6 Unary operators [valarray.unary]
+
+[🔗](#lib:operator+,valarray)
+
+`valarray operator+() const;
+valarray operator-() const;
+valarray operator~() const;
+valarray<bool> operator!() const;
+`
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/numerics.tex#L7813)
+
+*Mandates*: The indicated operator can be applied to operands of type T and returns a value of type T (bool foroperator!) or which may be unambiguously implicitly converted to typeT (bool for operator!)[.](#1.sentence-1)
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/numerics.tex#L7820)
+
+*Returns*: A valarray whose length is size()[.](#2.sentence-1)
+
+Each element of the returned array is initialized with the result of
+applying the indicated operator to the corresponding element of the array[.](#2.sentence-2)