operator<< (<bitset>)

將位元組序列的文字表示至輸出資料流。

template<class CharType, class Traits, size_t N>
   basic_ostream<CharType, Traits>& operator<< (
      basic_ostream<CharType, Traits>& ostr,
      const bitset<N>& _Right
   );

參數

• _Right
  要插入輸出資料流為字串型別 bitset<N> 的物件。

傳回值

位元順序的文字表示。 ostr的。

備註

樣板函式多載 operator<<，允許bitset會寫出，而不需要先將它轉換成字串。 樣板函式有效地執行:

ostr << _Right。to_string <CharType， Traits， allocator<CharType> > ()

範例

// bitset_op_insert.cpp
// compile with: /EHsc
#include <bitset>
#include <iostream>
#include <string>

int main( )
{
   using namespace std;

   bitset<5> b1 ( 9 );

   // bitset inserted into output stream directly
   cout << "The ordered set of bits in the bitset<5> b1(9)"
        << "\n can be output with the overloaded << as: ( "
        << b1 << " )" << endl;

   // Compare converting bitset to a string before
   // inserting it into the output steam
   string s1;
   s1 =  b1.template to_string<char, 
      char_traits<char>, allocator<char> >( );
   cout << "The string returned from the bitset b1"
        << "\n by the member function to_string( ) is: "
        << s1 << "." << endl;
}

Output

The ordered set of bits in the bitset<5> b1(9)
 can be output with the overloaded << as: ( 01001 )
The string returned from the bitset b1
 by the member function to_string( ) is: 01001.

需求

標題: <bitset>

命名空間: std