std::end(std::valarray)

The overload of std::end for valarray

The iterator returned from this function is invalidated when the member function resize() is called on v or when the lifetime of v

Parameters

Return value

Iterator to one past the last value in the numeric array.

Exceptions

May throw implementation-defined exceptions.

Notes

Unlike other functions that take std::valarray arguments, end() cannot accept the replacement types (such as the types produced by expression templates) that may be returned from expressions involving valarrays: std::end(v1 + v2) is not portable, std::end ( std::valarray <T> (v1 + v2) )

The intent of this function is to allow range for loops to work with valarrays, not to provide container semantics.

Example

#include <algorithm>
#include <iostream>
#include <valarray>
 
int main()
{
    const std::valarray<char> va
    {
        'H', 'e', 'l', 'l', 'o', 
        ',', ' ', 
        'C', '+', '+', '!', '\n'
    };
 
    std::for_each(std::begin(va), std::end(va),
                  [](char c){ std::cout << c; });
}

Hello, C++!

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

See also