[petsc-users] Why PETSc needs PetscScalar datatype?

[Youjun Hu]

Hi all,

I am just wondering why PETSc introduces PetscScalar datatype in addition
to the PetscReal and PetscComplex.
Could someone help clarify the rationale behind this design?
I am primarily a Fortran guy. The additional datatype PetscScalar seems to
only confuse me rather than provide me any flexibility.
Cheers,
Youjun Hu
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