Espaces de noms
Variantes
Actions

std::valarray::sum

De cppreference.com
< cpp‎ | numeric‎ | valarray

 
 
Bibliothèque Numerics
Fonctions mathématiques courantes
Virgule flottante environnement
Nombres complexes
Tableaux numériques
La génération de nombres pseudo-aléatoires
Moment de la compilation arithmétique rationnelle (C++11)
Génériques des opérations numériques
Original:
Generic numeric operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
iota (C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
 
T sum()const;
Calcule la somme des éléments .
Original:
Computes the sum of the elements.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
La fonction peut être utilisée uniquement si operator+= est défini pour T type. Si le std::valarray est vide, le comportement est indéfini. L'ordre dans lequel les éléments sont traités par cette fonction n'est pas spécifié .
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.

Sommaire

[modifier]Paramètres

(Aucun)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifier]Retourne la valeur

La somme des éléments .
Original:
The sum of the elements.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifier]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';}

Résultat :

55

[modifier]Voir aussi

applies a function to every element of a valarray
(fonction membre publique)[edit]
résume un ensemble d'éléments
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 générique)[edit]
close