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  1.     #include <iostream>
  2.     #include <bitset>
  3.     #include <cstdint>
  4.  
  5.     void printBitWise(std::ostream& os, uint8_t* data, size_t size) {
  6.     	for(size_t i = 0; i < size; ++i) {
  7.     		for(uint8_t j = 0; j < 8; ++j) {
  8.     			if((data[i] >> j) & 1) {
  9.     				os << '1';
  10.     			}
  11.     			else {
  12.     				os << '0';
  13.     			}
  14.     		}
  15.     	}
  16.     }
  17.  
  18.     int main() {
  19.     	int x = -1;
  20. 	    std::bitset<sizeof(int) * 8> bitwise1(x);
  21.  
  22. 	    std::cout << bitwise1.to_string() << std::endl;
  23.  
  24. 	    int y = -2;
  25. 	    std::bitset<sizeof(int) * 8> bitwise2(y);
  26.     	std::cout << bitwise2.to_string() << std::endl;
  27.  
  28. 	    float a = -1;
  29. 	    printBitWise(std::cout,reinterpret_cast<uint8_t*>(&a),sizeof(float));
  30. 	    std::cout << std::endl;
  31.  
  32. 	    double b = -1;
  33. 	    printBitWise(std::cout,reinterpret_cast<uint8_t*>(&b),sizeof(double));
  34. 	    std::cout << std::endl;
  35.  
  36. 	    float c = -2;
  37. 	    printBitWise(std::cout,reinterpret_cast<uint8_t*>(&c),sizeof(float));
  38. 	    std::cout << std::endl;
  39.  
  40. 	    double d = -2;
  41. 	    printBitWise(std::cout,reinterpret_cast<uint8_t*>(&d),sizeof(double));
  42. 	    std::cout << std::endl;
  43.  
  44. 	    return 0;
  45.     }
Success #stdin #stdout 0s 3428KB
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stdin
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Standard input is empty
stdout
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11111111111111111111111111111111
11111111111111111111111111111110
00000000000000000000000111111101
0000000000000000000000000000000000000000000000000000111111111101
00000000000000000000000000000011
0000000000000000000000000000000000000000000000000000000000000011
https://ideone.com/Olpa8I
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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