std::bitset::count
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| size_t count() const; |
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Gibt die Anzahl der Bits, die true gesetzt werden .
Original:
Returns the number of bits that are set to true.
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[Bearbeiten] Parameter
(None)
Original:
(none)
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[Bearbeiten] Rückgabewert
Anzahl der Bits, die true gesetzt werden .
Original:
number of bits that are set to true.
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.
[Bearbeiten] Beispiel
#include <iostream> #include <bitset> int main() { std::bitset<8> b("00010010"); std::cout << "initial value: " << b << '\n'; // find the first unset bit size_t idx = 0; while (idx < b.size() && b.test(idx)) ++idx; // continue setting bits until half the bitset is filled while (idx < b.size() && b.count() < b.size()/2) { b.set(idx); std::cout << "setting bit " << idx << ": " << b << '\n'; while (idx < b.size() && b.test(idx)) ++idx; } }
Output:
initial value: 00010010 setting bit 0: 00010011 setting bit 2: 00010111
[Bearbeiten] Siehe auch
| gibt die Größe Anzahl von Bits, die bitset halten kann Original: returns the size number of bits that the bitset can hold The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion) | |
