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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	int i;
  5.  
  6. 	for(i = 1; i < 100000; ++i) {
  7. 		int expected = (i & -i);
  8. 		int actual = (int)(1U << __builtin_ctz((unsigned)i));
  9. 		if(expected != actual) printf("Does not work for %d {%d != %d}\n", i, expected, actual);
  10. 	}
  11. 	printf("rest all are working\n");
  12. 	return 0;
  13. }
  14.  
Success #stdin #stdout 0s 2248KB
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stdin
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Standard input is empty
stdout
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rest all are working
https://ideone.com/vMSsX9
language:
C (gcc 8.3)
created:
9 years ago
visibility:
secret

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