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std::bitset::set

STD：：BITSET：：SET

bitset& set((1)​
bitset<N>& set( size_t pos, bool value = true (2)​

将所有位设置为true或特定的价值。

1%29将所有位设置为true...

2%29设置位在位置pos价值value...

参数

pos-the position of the bit to set (least significant to most significant)
value-the value to set the bit to

返回值

*this...

例外

1%29

(none)(until C++11)
noexcept specification: noexcept(since C++11)

2%29投std::out_of_range如果pos不对应于位集中的有效位置。

例

二次

#include <iostream>
#include <bitset>
 
int main()
{
    std::bitset<8> b;
    for (size_t i = 1; i < b.size( i += 2) {
        b.set(i
    }
    std::cout << b << '\n';
}

二次

产出：

二次

10101010

二次

另见

resetsets bits to false (public member function)
fliptoggles the values of bits (public member function)

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