You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
748 B
C
36 lines
748 B
C
/*
|
|
* C Program to use Bitwise Operations to Round(floor of) an Integer
|
|
* to next Lower Multiple of 2
|
|
*/
|
|
#include <stdio.h>
|
|
|
|
void main()
|
|
{
|
|
int x = 1, i, n;
|
|
printf("enter the number :");
|
|
scanf("%d", &n);
|
|
/* for positive values */
|
|
if (n > 0)
|
|
{
|
|
for (; x <= n >> 1;)
|
|
{
|
|
x = x << 1;
|
|
}
|
|
n = x;
|
|
}
|
|
/* for negative values */
|
|
else
|
|
{
|
|
n = ~n;
|
|
n = n + 1;
|
|
for (; x <= n >> 1;)
|
|
{
|
|
x = x << 1;
|
|
}
|
|
x = x << 1;
|
|
x = ~x;
|
|
x = x + 1;
|
|
n = x;
|
|
}
|
|
printf("%d", n);
|
|
} |