Re: Interfacing Ada with C

[Ada novice <posts@gmx.us>]

On Jul 25, 7:06 pm, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
wrote:

> C files or library files?
> With library files (import or object) it is simpler

> (If you have only a shared library then it would require a bit more work.)

It's a library file in IMSL named imslcmath_dll.lib

To use IMSL C library there are 2 steps:

1. Specify the location of the IMSL header files. It's  an "include"
directory in the IMSL directory.

2. Add the actual IMSL C library to the project. This IMSL C library
is called imslcmath_dll.lib which is in a "lib" directory in the IMSL
directory. There are other lib files, but this one is used for
numerical tasks.

I'm able to do the above easily with MVS2008/2010. The first step is
adding the "include" directory under Project > Configuration
Properties > C/C++ > General. The second step is just Project > Add
existing item.

I have only limited experience with GPS but let's give it a try:

First I create a folder and put the file imsl.ads, imsl.adb and
main_ada_file.adb (my testmatrix.adb). Then I create a project gpr,
specifying the main file and the source directory (containing our 3
files).

Then according to my step 1 from above, I add the folder "include"
from IMSL as also a source directory. So now I have 2 source
directories.

Then for step 2, I need to add the imslcmath_dll.lib file? How do I do
that in GPS? I can compile all 3 files imsl.ads, imsl.adb,
main_ada_file.adb in GPS. Then how do I proceed?

How do I do this in GPS:

> gnatmake main_ada_file.adb --largs library_file.lib

Sorry if I'm not that good enough to understand your explanations
quickly.

Thanks for your kind help and patience.
YC