std::valarray::apply
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| valarray<T> apply( T func(T) ) const; |
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| valarray<T> apply( T func(const T&) ) const; |
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Devolve uma valarray novo do mesmo tamanho com valores que são obtidos através da aplicação de
func função para os valores anteriores dos elementos.Original:
Returns a new valarray of the same size with values which are acquired by applying function
func to the previous values 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.
You can help to correct and verify the translation. Click here for instructions.
Índice |
[editar] Parâmetros
| func | - | funcionar para aplicar os valores
Original: function to apply to the values The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[editar] Valor de retorno
O valarray resultante com valores adquiridos através da aplicação
func função.Original:
The resulting valarray with values acquired by applying function
func.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[editar] Notas
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:
The text has been machine-translated via Google Translate.
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- Todas as funções const membros std::valarray são fornecidos.Original:All const member functions of std::valarray are provided.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. - 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.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. - 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.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions. - 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.The text has been machine-translated via Google Translate.
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[editar] Exemplo
calcula e imprime os 10 primeiros fatoriais
Original:
calculates and prints the first 10 factorials
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#include <iostream> #include <valarray> #include <cmath> int main() { std::valarray<int> v = {1,2,3,4,5,6,7,8,9,10}; v = v.apply([](int n)->int { return std::round(std::tgamma(n+1)); }); for(auto n : v) { std::cout << n << ' '; } std::cout << '\n'; }
Saída:
1 2 6 24 120 720 5040 40320 362880 3628800
[editar] Veja também
| aplica-se uma função de uma série de elementos Original: applies a function to 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. (modelo de função) | |
