C++ STL中的bitset reset()函数

bitset :: reset()是C++ STL中的内置函数，用于重置参数中给定索引处的位。如果未传递任何参数，则所有位都将重置为零。

句法：

reset(int index) 

参数：该函数接受参数索引，该索引指示必须将位重置为零的位置。如果未传递任何参数，则位集中的所有位都将重置为零。

返回值：该函数不返回任何内容。

下面的程序说明了bitset :: reset()函数。

程序1：

// CPP program to illustrate the
// bitset::reset() function
#include 
using namespace std;
  
int main()
{
    // Initialization of bitset
    bitset<4> b1(string("1100"));
    bitset<6> b2(string("111111"));
  
    // Function that resets all bits
    cout << "Before applying reset() function: "
         << b1 << endl;
  
    b1.reset();
    cout << "After applying reset() function: "
         << b1 << endl;
  
    // Function that resets all bits
    cout << "Before applying reset() function: "
         << b2 << endl;
  
    b2.reset();
    cout << "After applying reset() function: "
         << b2 << endl;
  
    return 0;
}

输出：

Before applying reset() function: 1100
After applying reset() function: 0000
Before applying reset() function: 111111
After applying reset() function: 000000

程式2：

// CPP program to illustrate the
// bitset::reset() function
#include 
using namespace std;
  
int main()
{
    // Initialization of bitset
    bitset<4> b1(string("1101"));
    bitset<6> b2(string("111111"));
  
    // Function that resets all bits
    cout << "Before applying reset() function: "
         << b1 << endl;
    b1.reset(2);
    cout << "After applying reset(2) function: "
         << b1 << endl;
  
    // Function that resets all bits
    cout << "Before applying reset() function: "
         << b2 << endl;
  
    b2.reset(3);
    b2.reset(5);
    cout << "After applying reset(3) and reset(5) function: "
         << b2 << endl;
  
    return 0;
}

输出：

Before applying reset() function: 1101
After applying reset(2) function: 1001
Before applying reset() function: 111111
After applying reset(3) and reset(5) function: 010111

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