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  1. #include <iostream>
  2. #include <bitset>
  3. #include <stdio.h>
  4. using namespace std;
  5.  
  6. void printIntBits(int num);
  7. void printExpression(char *text, int value);
  8.  
  9. int main() {
  10. 	int number = 92;
  11.  
  12. 	printExpression("number", number);
  13. 	printExpression("~number", ~number);
  14. 	printExpression("(~number) + 1", (~number) + 1);
  15. 	printExpression("-number", -number);
  16. 	printExpression("(number) & (-number)", (number) & (-number));
  17.  
  18. 	return 0;
  19. }
  20.  
  21. void printExpression(char *text, int value) {
  22. 	printf("%-20s", text);
  23. 	printIntBits(value);
  24. 	printf("\n");
  25. }
  26.  
  27. void printIntBits(int num) {
  28.     for(int i = 0; i < 8; i++) {
  29.         int mask = (0xF0000000 >> (i * 4));
  30.         int portion = (num & mask) >> ((7 - i) * 4);
  31. 	    cout << " " << std::bitset<4>(portion);
  32.     }
  33. }
  34.  
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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number               0000 0000 0000 0000 0000 0000 0101 1100
~number              1111 1111 1111 1111 1111 1111 1010 0011
(~number) + 1        1111 1111 1111 1111 1111 1111 1010 0100
-number              1111 1111 1111 1111 1111 1111 1010 0100
(number) & (-number) 0000 0000 0000 0000 0000 0000 0000 0100
https://ideone.com/WzpxSD
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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