[petsc-users] PETSC_VERSION_GT doesn't behave as I would have expected

[Eike Mueller]

Dear PETSc developers,

I’m using a code which checks

#if PETSC_VERSION_GT(3, 24, 5)
   // do something
#endif

For my PETSc installation I have:

#define PETSC_VERSION_RELEASE    0
#define PETSC_VERSION_MAJOR      3
#define PETSC_VERSION_MINOR      24
#define PETSC_VERSION_SUBMINOR   4

Looking at petscversion.h, I believe that PETSC_VERSION_GT(3, 24, 5) will always evaluate to true since PETSC_VERSION_RELEASE==0. This confused me, since there is no mention of PETSC_VERSION_RELEASE in the documentation at https://urldefense.us/v3/__https://petsc.org/release/manual/versionchecking/__;!!G_uCfscf7eWS!fqRtEQeeX09t_o3xjWfEQaGE6FLfl_LQJL5iDNuMqoG9vC1TBTGaRNcGyGudQlPsSk2TVNBaw04iNpZYFiAKbA$ 

Is this intended behaviour? Is there a good way of checking the version irrespective of RELEASE? I can of course always copy and modify the definition of PETSC_VERSION_LT and remove the PETSC_VERSION_RELEASE == 1 bit, but that’s probably not the best solution.

Thanks a lot,

Eike
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