std::generate
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| definiert in Header <algorithm>
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| template< class ForwardIt, class Generator > void generate( ForwardIt first, ForwardIt last, Generator g ); |
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Weist jedes Element im Bereich
[first, last) ein Wert der gegebenen Funktion Objekt generiert 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.
You can help to correct and verify the translation. Click here for instructions.
Inhaltsverzeichnis |
[Bearbeiten] Parameter
| first, last | - | der Bereich der Elemente zu erzeugen
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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[Bearbeiten] Rückgabewert
(None)
Original:
(none)
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[Bearbeiten] Komplexität
Genau std::distance(first, last) Anrufungen
g() und Aufgaben .Original:
Exactly std::distance(first, last) invocations of
g() and assignments.The text has been machine-translated via Google Translate.
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[Bearbeiten] Mögliche Implementierung
template<class ForwardIt, class Generator> void generate(ForwardIt first, ForwardIt last, Generator g) { while (first != last) { *first++ = g(); } } |
[Bearbeiten] Beispiel
Der folgende Code verwendet füllt einen Vektor mit Zufallszahlen:
Original:
The following code uses fills a vector with random numbers:
The text has been machine-translated via Google Translate.
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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"; }
Output:
v: 52894 15984720 41513563 41346135 51451456
[Bearbeiten] Siehe auch
| weist eine Reihe von Elementen ein bestimmter Wert 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. (Funktions-Template) | |
| speichert das Ergebnis der N-Anwendungen einer Funktion 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. (Funktions-Template) | |
