[petsc-dev] Compliant C89

Jed Brown jedbrown at mcs.anl.gov
Mon Jan 14 13:00:11 CST 2013

On Mon, Jan 14, 2013 at 12:57 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:

>  Ok, I didn't realize inline functions can't be called in a declaration.

In C89, it can't, but most compilers will happily allow it. But if we
changed to an inline function, we would have to change the prototype to
properly return an error, i.e.,

PetscErrorCode PetscBLASIntCast(PetscInt,PetscBLASInt*);

which obviously cannot be called in a declaration. It's syntactically
heavier, but more honest about what really happens.

>     If that is the case then I am fine with changing to an inline and thus
> forcing it always out of declarations.
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