std::valarray::sum – cppreference.com
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Berechnet die Summe der Elemente .
Original:
Computes the sum of the elements.
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Die Funktion kann nur verwendet werden, wenn operator+= für Typ T definiert werden. Wenn die std::valarray leer ist, ist das Verhalten undefiniert. Die Reihenfolge, in der die Elemente von dieser Funktion verarbeitet werden, ist nicht angegeben .
Original:
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.
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Parameter
(None)
Original:
(none)
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Rückgabewert
Die Summe der Elemente .
Original:
The sum of the elements.
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Beispiel
#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:
Siehe auch
| applies a function to every element of a valarray (öffentliche Elementfunktion) [edit] | |
fasst eine Reihe von Elementen Original: sums up a range of elements The text has been machine-translated via Google Translate. (Funktions-Template) [edit] | |