Help....varibbles are unset at somewhere in udf
 

#include "udf.h"

#define m 101

real X,Y;

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static real timestep;

DEFINE_GRID_MOTION(canopy,domain,dt,time,dtime)
{
Thread *tf;
face_t f;
Node *V;

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timestep = dtime ;


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Message ("current time = %f, time step %f, dt %f\n", time, dtime, timestep); /* line:77 */


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Message ("////time step = %i\n", timestep ); /* line:349 */

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}


timestep is correct in first message but incorrect in second message.

first message:
current time = 0.000010, time step 0.000010, dt 0.000010

second message:
////time step = -2147483648

plz help...:confused::confused::eek:

I would use instead of:
the following:

thx
 

Thanks friend!!!