[gmx-developers] Replacing float and double in gromacs.

[Christian Mötzing]

Hi, for my thesis I'm trying to replace float and double in Gromacs with
an own type. During compilation real is typedef to float or double. But
there are still a few places where double or float is explicitly used.
Sometimes this happens in functions with pre- or postfix s/d. As I
understand these are double and single functions, right? Are d-functions
really only used if compiled with double precision?
If found at least one instance where a comment states that double is
used for greater accuracy. If I compile gromacs in single precision this
makes sense. Would it be a big impact if those places where compiled
with single precision as well?

I appreciate all comments and opinions.


Cheers
Christian