std::generate
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| Definido no cabe��alho <algorithm>
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| template< class ForwardIt, class Generator > void generate( ForwardIt first, ForwardIt last, Generator g ); |
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Atribui a cada elemento na faixa
[first, last) um valor gerado pelo objeto função dada g. Original:
Assigns each element in range
[first, last) a value generated by the given function object g. The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Índice |
[editar] Parâmetros
| first, last | - | a gama de elementos para gerar
Original: the range of elements to generate The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |||||||||
| g | - | generator function object that will be called. The signature of the function should be equivalent to the following:
The type Ret must be such that an object of type ForwardIt can be dereferenced and assigned a value of type Ret. | |||||||||
| Type requirements | |||||||||||
-ForwardIt must meet the requirements of ForwardIterator.
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[editar] Valor de retorno
(Nenhum)
Original:
(none)
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[editar] Complexidade
Exatamente std::distance(first, last) invocações de
g() e atribuições.Original:
Exactly std::distance(first, last) invocations of
g() and assignments.The text has been machine-translated via Google Translate.
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[editar] Possível implementação
template<class ForwardIt, class Generator> void generate(ForwardIt first, ForwardIt last, Generator g) { while (first != last) { *first++ = g(); } } |
[editar] Exemplo
Os usos de código a seguir preenche um vetor com números aleatórios:
Original:
The following code uses fills a vector with random numbers:
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#include <algorithm> #include <iostream> #include <cstdlib> int main() { std::vector<int> v(5); std::generate(v.begin(), v.end(), std::rand); // Using the C function rand() std::cout << "v: "; for (auto iv: v) { std::cout << iv << " "; } std::cout << "\n"; }
Saída:
v: 52894 15984720 41513563 41346135 51451456
[editar] Veja também
| atribui um intervalo de elementos de um certo valor Original: assigns a range of elements a certain value 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) | |
| guarda o resultado de aplicações de N de uma função Original: saves the result of N applications of a function 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) | |
