There is no cutil_math.h in cuda 7.5

I used a “cutil_math.h” hedear file in cuda toolkit 4.0.

But there is no “cutil_math.h” in cuda toolkit 7.5.

What heder file should I use in cuda 7.5 instead of “cutil_math.h” ?

I would try helper_math.h. If you are using Linux you can find it in the directory /usr/local/cuda/samples/common/inc