gfortran & iargc/getarg

[Erik Schnetter]

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On Wednesday 07 April 2004 00:07, Satish Balay wrote:
> Thanks to the recent 'char commonblock' updates I was able to go a
> bit further with gfortran.
>
> My next issue is command line argument processing support. Is there a
> plan to add iargc()/getarg() or ipxfargc()/pxfgetarg() support into
> gfortran?

That should not be difficult.  argc and argv are already saved at 
startup, and there is a routine get_args to access them.  See the files 
fmain.c and runtime/main.c in the libgfortran directory.

I tried to implement iargc and getarg, but came across a problem: these 
are external procedures and not intrinsics.  I know how to teach 
gfortran about new intrinsics, but how do I add new external procedure 
to libgfortran?

A related question: What is the type name, in C, for a default Fortran 
integer?  Is it index_type?

- -erik

PS: libgfortran contains many references to gcc-g95.sourceforge.net, it 
calls itself "libgfor", and it gives install instructions for a gcc 
that doesn't know about gfortran.  Those are outdated.

- -- 
Erik Schnetter <schnetter@aei.mpg.de>   http://www.aei.mpg.de/~eschnett/

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