operator>> (<bitset>)

读取位字符字符串。bitset。

template<class CharType, class Traits, size_t Bits>
   basic_istream<CharType, Traits>& operator>> (
      basic_istream<CharType, Traits>& _Istr,
      bitset<N>& _Right
   );

参数

• _Istr
  输入要插入的输入流到bitset的字符串。

• _Right
  接收输入流中的位的bitset。

返回值

模板函数返回字符串 _Istr。

备注

模板函数在bitset _Right重载 operator>> 存储值bitset (str)，其中 str 是类型 basic_string<CharType，Traits，allocator<CharType> >从 _Istr提取的**&** 对象。

模板函数从 _Istr 和插入提取元素到bitset中直到:

• 所有位组件输入流在bitset中提取并存储状态。

• bitset用位填满输入流。

• 不是0和1.的输入元素遇到。

示例

#include <bitset>
#include <iostream>
#include <string>

using namespace std;
int main()
{

   bitset<5> b1;
   cout << "Enter string of (0 or 1) bits for input into bitset<5>.\n"
        << "Try bit string of length less than or equal to 5,\n"
        << " (for example: 10110): ";
   cin >>  b1;

   cout << "The ordered set of bits entered from the "
        << "keyboard\n has been input into bitset<5> b1 as: ( "
        << b1 << " )" << endl;

   // Truncation due to longer string of bits than length of bitset
   bitset<2> b3;
   cout << "Enter string of bits (0 or 1) for input into bitset<2>.\n"
        << " Try bit string of length greater than 2,\n"
        << " (for example: 1011): ";
   cin >>  b3;

   cout << "The ordered set of bits entered from the "
        << "keyboard\n has been input into bitset<2> b3 as: ( "
        << b3 << " )" << endl;

   // Flushing the input stream
   char buf[100];
   cin.getline(&buf[0], 99);

   // Truncation with non-bit value
   bitset<5> b2;
   cout << "Enter a string for input into  bitset<5>.\n"
        << " that contains a character than is NOT a 0 or a 1,\n "
        << " (for example: 10k01): ";
   cin >>  b2;

   cout << "The string entered from the keyboard\n"
        << " has been input into bitset<5> b2 as: ( "
        << b2 << " )" << endl;
}

输入

10110
1011
10k10

要求

标头: <bitset>

命名空间: std