# PetscCookie

A unique id used to identify each PETSc object. (internal integer in the data structure used for error checking). These are all defined by an offset from the lowest one, PETSC_SMALLEST_COOKIE.

### See Also

PetscLogClassRegister(), PetscLogEventRegister(), PetscHeaderCreate()

Level:advanced
Location: include/petsc.h
Index of all Sys routines
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Index of all manual pages