std::valarray<T>:: sum

Computes the sum of the elements.

The function can be used only if operator + = is defined for type T . If the std::valarray is empty, the behavior is undefined. The order in which the elements are processed by this function is unspecified.

Parameters

(none)

Return value

The sum of the elements.

Example

#include <iostream>
#include <valarray>
int main()
{
    std::valarray<int> a = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    std::cout << a.sum() << '\n';
}

55

See also