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typedef struct HPointStruct
{
double x;
double y;
double z;
double w;
}HPoint;
typedef struct ObjPointStruct
{
double x;
double y;
double z;
double tx;
double ty;
double tz;
}ObjPoint;
HPoint PointToHPoint(ObjPoint P);
HPoint PointToHPoint(ObjPoint P)
{
HPoint res;
res.x = P.x;
res.y = P.y;
res.z = P.z;
res.w = 1;
return res;
}
double test1(HPoint (*f)(ObjPoint), double x)
{
ObjPoint P;
HPoint HP;
P.x = x;
HP = f(P);
return HP.x;
}
double test2(double x)
{
return test1(PointToHPoint, x);
}
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