36 lines
748 B
C
36 lines
748 B
C
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/*
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* C Program to use Bitwise Operations to Round(floor of) an Integer
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* to next Lower Multiple of 2
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*/
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#include <stdio.h>
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void main()
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{
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int x = 1, i, n;
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printf("enter the number :");
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scanf("%d", &n);
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/* for positive values */
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if (n > 0)
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{
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for (; x <= n >> 1;)
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{
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x = x << 1;
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}
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n = x;
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}
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/* for negative values */
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else
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{
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n = ~n;
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n = n + 1;
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for (; x <= n >> 1;)
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{
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x = x << 1;
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}
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x = x << 1;
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x = ~x;
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x = x + 1;
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n = x;
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}
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printf("%d", n);
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}
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