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std::valarray::operator+,-,~,! - cppreference.com

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valarray<T> operator+() const;

 (1)

valarray<T> operator-() const;

 (2)

valarray<T> operator~() const;

 (3)

valarray<bool> operator!() const;

 (4)

Aplica-se operadores unários para cada elemento da matriz numérica.

Original:

Applies unary operators to each element in the numeric array.

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Parâmetros

(Nenhum)

Original:

(none)

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Valor de retorno

A matriz numérica contendo elementos com os valores obtidos pela aplicação de operador correspondente aos valores em *this.

Original:

A numeric array containing elements with values obtained by applying corresponding operator to the values in *this.

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Exceções

(Nenhum)

Original:

(none)

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Notas

Cada um dos operadores só pode ser instanciado se os seguintes requisitos:

Original:

Each of the operators can only be instantiated if the following requirements are met:

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  • O operador indicado pode ser aplicado a digitar T

    Original:

    The indicated operator can be applied to type T

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  • O valor do resultado possa ser inequivocamente convertido T (1-3) ou bool (4).

    Original:

    The result value can be unambiguously converted to T (1-3) or bool (4).

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A função pode ser implementada com o tipo de retorno diferente de std::valarray. Neste caso, o tipo de substituição tem as seguintes propriedades:

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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  • Todas as funções const membros std::valarray são fornecidos.

    Original:

    All const member functions of std::valarray are provided.

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  • std::valarray, std::slice_array, std::gslice_array, std::mask_array std::indirect_array e pode ser construído a partir do tipo de reposição.

    Original:

    std::valarray, std::slice_array, std::gslice_array, std::mask_array and std::indirect_array can be constructed from the replacement type.

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  • Todas as funções de aceitar um argumentos de const std::valarray& tipo devem também aceitar o tipo de substituição.

    Original:

    All functions accepting a arguments of type const std::valarray& should also accept the replacement type.

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  • Todas as funções que aceitam dois argumentos do tipo const std::valarray& deve aceitar todas as combinações de const std::valarray& e do tipo de substituição.

    Original:

    All functions accepting two arguments of type const std::valarray& should accept every combination of const std::valarray& and the replacement type.

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