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erynofwales/rotates.c

Created September 8, 2011 06:43
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Do bit rotations with bit shifts in C
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rotates.c
/* Do bit rotations. x is the data to rotate, c is the number of bits to rotate */
#define ROTATE_R(x,c) (x) = ((x) >> c) | ((x) << (sizeof(x) - c))
#define ROTATE_L(x,c) (x) = ((x) << c) | ((x) >> (sizeof(x) - c))
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