c 2b 2b base 10 to base 2

1void show_binary( int dec )
2{
3    std::cout << "decimal = " << dec << "\n";
4    
5    std::string bin{};
6    
7    while( dec > 0 ) {
8        if( dec % 2 == 0 ) bin.insert( bin.begin( ), '0' );
9        else bin.insert( bin.begin( ), '1' );
10        
11        dec >>= 1;
12    }
13    
14    std::cout << "binary = " << bin << "\n";
15}