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std::end(std::valarray)

STD：：结束%28 std：：valArray%29

template< class T > /*unspecified1*/ end( valarray& v (1)(since C++11)
template< class T > /*unspecified2*/ end( const valarray<T>& v (2)(since C++11)

过载std::end为valarray返回一个未指定类型的迭代器，该迭代器引用数值数组中的最后一个元素。

1%29返回类型满足可变要求。RandomAccessIterator...

2%29返回类型符合常数要求。RandomAccessIterator...

当成员函数时，从此函数模板获得的迭代器无效。resize()在数组上调用v或者当…的生命周期v结束，以第一位为准。

参数

v-a numeric array

返回值

Iterator到数值数组中的最后一个值。

例外

%280%29

注记

不像其他功能std::valarray争论，end()无法接受替换类型%28，例如表达式模板%29生成的类型，这些类型可能从涉及valArray的表达式中返回：std::end(v1 + v2)不能携带，std::end(std::valarray<T>(v1 + v2))必须用它来代替。

此功能的目的是允许回路范围使用valArray，而不是提供容器语义。

例

另见

std::begin(std::valarray) (C++11)specializes std::begin (function template)

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