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std::abs<div class="t-tr-text">(Std :: valarray)<div class="t-tr-dropdown"><div><div><div class="t-tr-dropdown-arrow-border"></div><div class="t-tr-dropdown-arrow"></div><div class="t-tr-dropdown-h">Original:</div><div class="t-tr-dropdown-orig">(std::valarray)</div><div class="t-tr-dropdown-notes">The text has been machine-translated via [http://translate.google.com Google Translate].<br/> You can help to correct and verify the translation. Click [http://en.cppreference.com/w/Cppreference:MachineTranslations here] for instructions.</div></div></div></div></div>

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< cpp‎ | numeric‎ | valarray
 
 
 
 
Definido en el archivo de encabezado <valarray>
template<class T >
valarray<T> abs(const valarray<T>& va );
Calcula el valor absoluto de cada elemento en la matriz de valores .
Original:
Computes absolute value of each element in the value array.
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Contenido

[editar]Parámetros

va -
matriz de valores para aplicar la operación a
Original:
value array to apply the operation to
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[editar]Valor de retorno

Valor matriz que contiene los valores absolutos de los valores en va .
Original:
Value array containing absolute values of the values in va.
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[editar]Notas

Función Cualificado (abs) se utiliza para realizar el cálculo. Si tal función no está disponible, std::abs se utiliza debido a búsqueda argumento dependiente .
Original:
Unqualified function (abs) is used to perform the computation. If such function is not available, std::abs is used due to argument dependent lookup.
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La función se puede implementar con el tipo de retorno diferente de std::valarray. En este caso, el tipo de reemplazo tiene las siguientes propiedades:
Original:
The function can be implemented with the return type different from std::valarray. In this case, the replacement type has the following properties:
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[editar]Posible implementación

template<class T > valarray<T> abs(const valarray<T>& va ){ valarray<T> other = va;for(T &i : other){ i = abs(i);}return other;// proxy object may be returned}

[editar]Ejemplo

#include <valarray>#include <iostream>   int main(){std::valarray<int> v{1, -2, 3, -4, 5, -6, 7, -8};std::valarray<int> v2 = std::abs(v);for(auto n : v2){std::cout<< n <<' ';}std::cout<<'\n';}

Salida:

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[editar]Ver también

calcula el valor absoluto de un valor de la integral (|x|)
Original:
computes absolute value of an integral value (|x|)
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(función)
valor absoluto de un valor de punto flotante (|x|)
Original:
absolute value of a floating point value (|x|)
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(función)
Devuelve la magnitud de un número complejo.
(plantilla de función)[editar]
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