PETSC_STATIC_INLINE PetscInt PetscRealIntMultTruncate(PetscReal a,PetscInt b)Not Collective
| a | - the PetscReal value | |
| b | - the second value |
Use PetscIntMult64bit() to compute the product of two PetscInt as a Petsc64bitInt Use PetscIntMultTruncate() to compute the product of two positive PetscInt and truncate to fit a PetscInt Use PetscIntMultError() to compute the product of two PetscInt if you wish to generate an error if the result will not fit in a PetscInt
Developers Note: We currently assume that PetscInt addition can never overflow, this is obviously wrong but requires many more checks.
This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
Level:advanced
Location:include/petscsys.h
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages