std::valarray::apply
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valarray<T> apply( T func(T))const; | ||
valarray<T> apply( T func(const T&))const; | ||
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.
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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:
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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_arraystd::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 conststd::valarray& tipo devem também aceitar o tipo de substituição.Original:All functions accepting a arguments of type conststd::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 conststd::valarray& deve aceitar todas as combinações de conststd::valarray& e do tipo de substituição.Original:All functions accepting two arguments of type conststd::valarray& should accept every combination of conststd::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{returnstd::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) |