Interface MA27

[amontoison]

close #213

cc @frapac

[sshin23]

I wonder if it would make more sense to implement something like ma27a, which multiple dispatches it to ma27as, ma27ad, ma27aq, etc

[amontoison]

I already did this for GALAHAD:

• https://github.com/ralna/GALAHAD/blob/master/GALAHAD.jl/src/wrappers/arc.jl#L105-L114

The underlying idea is to use an additional first argument (the float type) for dispatch.
I could add an additional layer to do this dispatch, you're right.

[sshin23]

I think it would be good to have that layer. Then, e.g., MadNLPHSL can just rely on ma27a and things will automatically work once QuadMath is imported

[amontoison]

I think it would be good to have that layer. Then, e.g., MadNLPHSL can just rely on ma27a and things will automatically work once QuadMath is imported

Should I do a double layer with the integer type as well?
I opened the PR #216 with the new symbols.

[amontoison]

I think it would be good to have that layer. Then, e.g., MadNLPHSL can just rely on ma27a and things will automatically work once QuadMath is imported

Done in #220
Example with ma27ar:
https://github.com/JuliaSmoothOptimizers/HSL.jl/blob/main/src/Fortran/hsl_subset/ma27.jl#L25-L74