PetscIntSumTruncate#
Computes the sum of two positive PetscInt and truncates the value to slightly less than the maximal possible value
Synopsis#
static inline PetscInt PetscIntSumTruncate(PetscInt a, PetscInt b)
Not Collective; No Fortran Support
Input Parameters#
a - the
PetscIntvalueb - the second value
Returns#
The result as a PetscInt value
Notes#
Use PetscInt64Mult() to compute the product of two PetscInt as a PetscInt64
Use PetscRealIntMultTruncate() to compute the product of a PetscReal and a 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
Developer Note#
This is used where we compute approximate sizes for workspace and need to insure the workspace is index-able.
See Also#
PetscBLASInt, PetscMPIInt, PetscInt, PetscBLASIntCast(), PetscInt64Mult(), PetscIntMultError()
Level#
advanced
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages