alanduan · August 18, 2016 22:16
diff --git a/clean_bits.c b/clean_bits.c
 #include <stdio.h>

 int main()
 {
    long long a = -1ll;
    unsigned b = 0xff;
    a &= ~b;
    // what is a now?
    printf("0x%016llx\n", a);
 }
	#include <stdio.h>

	int main()
	{
	long long a = -1ll;
	unsigned b = 0xff;
	a &= ~b;
	// what is a now?
	printf("0x%016llx\n", a);
	}