std::valarray::sum
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<tbody> </tbody> T sum() const; |
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Calcule la somme des lments .
Original:
Computes the sum of the elements.
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La fonction peut tre utilise uniquement si
operator+= est dfini pour T type. Si le std::valarray est vide, le comportement est indfini. L'ordre dans lequel les lments sont traits par cette fonction n'est pas spcifi .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.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Paramtres
(Aucun)
Original:
(none)
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Retourne la valeur
La somme des lments .
Original:
The sum of the elements.
The text has been machine-translated via Google Translate.
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Exemple
#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';
}
Rsultat :
55
Voir aussi
| applies a function to every element of a valarray (fonction membre publique) | |
rsume un ensemble d'lments Original: sums up a range of elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction gnrique) | |