26 lines
603 B
C
26 lines
603 B
C
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/*
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* C Program to Count Number of bits set to 0 in a Integer x
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*/
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#include <stdio.h>
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#define NUM_BITS_INT (8*sizeof(int))
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int count_unset(int);
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int main()
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{
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int i, num, snum, res, count = 0;
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printf("\nEnter the number");
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scanf("%d", &num);
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/*
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* Check each bit whether the bit is set or unset
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* Uses >> and & operator for checking individual bits
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*/
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for (i = 0; i <= NUM_BITS_INT; i++)
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{
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snum = num >> i;
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res = snum & 1;
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if (res == 0)
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count++;
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}
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printf("%d", count);
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}
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