[Mitgcm-support] Re: problem of _RL

[mitgcm-support at dev.mitgcm.org]

CPP macros (usually beginning with _) are replaced before compilation. _RL
normally
becomes real*8 and _RS becomes either real*4 or real*8 depending on the platform
and configuration. They are constructs we use to simplify portability.
We have no experience with Compaq Visual Fortran but if you have a C-preprocesor
(cpp) then the existing scripts should be easy to adapt to generate a working
Makefile.

Alistair.

Xianyao Chen wrote:
> Dear Sir,
> 
> I am the beginning user of MITGCM, i have a basic problem, I saw there
> are lots of code line start with "_"
> such as "_RL ...", would you please tell me what is meaning of _RL? Is
> it something used by Parallel procedure?
> Could Compaq Visual Fortran support this kind of code?
> 
> thanks in advance
> 
> Xianyao Chen