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  1. #include <stdio.h>
  2. int main() {
  3.   int i;
  4.   int v = 5;
  5.   for (i = 0; v; i++) {
  6.     printf("i=%d, v=%d, v-1=%d, v & (v-1) = %d\n", i, v, v-1, v & (v - 1));
  7.     v &= (v - 1);
  8.     printf("%d\n", v);
  9.   }
  10.   return 0;
  11. }
Success #stdin #stdout 0s 3468KB
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stdin
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Standard input is empty
stdout
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i=0, v=5, v-1=4, v & (v-1) = 4
4
i=1, v=4, v-1=3, v & (v-1) = 0
0
https://ideone.com/glm7QA
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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