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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. unsigned int rand32bit(void){
  5.  
  6. 	unsigned int i, x, r = 0;
  7.  
  8. 	x = rand();
  9. 	if (x & 0x4000) {
  10. 		r += 0;
  11. 		putchar('0');
  12. 	}
  13. 	else {
  14. 		r += 1;
  15. 		putchar('1');
  16. 	}
  17.  
  18. 	for (i = 0; i<31; i++){
  19. 		x = rand();
  20. 		if (x & 0x4000) {
  21. 			r <<= 1; r += 0;
  22. 			putchar('0');
  23. 		}
  24. 		else {
  25. 			r <<= 1; r += 1;
  26. 			putchar('1');
  27. 		}
  28. 	}
  29.  
  30. 	putchar('\n');
  31. 	return r;
  32. }
  33.  
  34. int main()
  35. {
  36. 	int i;
  37. 	printf("RAND_MAX=%x\n", RAND_MAX);
  38. 	for (i = 0; i < 10; i++) {
  39. 		rand32bit();
  40. 	}
  41. 	return 0;
  42. }
  43.  
Success #stdin #stdout 0s 2052KB
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stdin
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Standard input is empty
stdout
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RAND_MAX=7fffffff
01100010100001101011100011000001
00001010011110111100011101010110
10000011100110000100000110111101
00010100110100100111101111100100
00111011100011011011000010111101
10010010000101100010000101111011
11111100111001001010000100110010
00001001101011110010100100110111
11111101100101000011011010000111
00100000001110111011100111110111
https://ideone.com/DRKHqj
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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