C Programming - Bitwise Operators - Discussion
Discussion Forum : Bitwise Operators - Find Output of Program (Q.No. 10)
10.
What will be the output of the program?
#include<stdio.h>
int main()
{
printf("%d %d\n", 32<<1, 32<<0);
printf("%d %d\n", 32<<-1, 32<<-0);
printf("%d %d\n", 32>>1, 32>>0);
printf("%d %d\n", 32>>-1, 32>>-0);
return 0;
}
Discussion:
42 comments Page 5 of 5.
Sindhu said:
1 decade ago
32<<1 means : Binary value of 32 is 00100000 << 1 gives 01000000 gives 64.
32<<0 has no change gives the same value.
32<<-1 means: As -1 is negative number should take its 2's compliment value i.e 15 .so << by 15bits gives result zero to binary value of 32.
32<<0 has no change gives the same value.
32<<-1 means: As -1 is negative number should take its 2's compliment value i.e 15 .so << by 15bits gives result zero to binary value of 32.
Saikumar said:
1 decade ago
Compiler dependent question on gcc 4.7.2 the answer is:
64 32
16 32
16 32
64 32
64 32
16 32
16 32
64 32
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