std::valarray<T>::sum
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std::valarray
T sum() const;
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.
Contents
[edit] Parameters
(none)
[edit] Return value
The sum of the elements.
[edit] Example
Run this code
#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'; }
Output:
55