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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
1 2 3 4 5 6 7 8 | #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:
1 |
See also
| applies a function to every element of a valarray (public member function) | |
| sums up a range of elements (function template) |
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