Hi, Petsc Team,
I wonder if we can utilize a global variable when using PETSc, such as a
declaration and definition in the main function:
extern PetscScalar x, y, z;
x = 1.0;
This should be a regular usage in ANSI C and will help a lot when we have
user-defined functions. If it can work, then it will easily replace those
functions like DAGetInfo( ) and save running time. But I don't see any examples
of using this in PETSc before. And I've tried this but it doesn't work or
cannot pass the compiling check.
Thank you.
Zhisong Li
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