PetscBLASIntCast

casts a MPI_Count, PetscInt, PetscCount or PetscInt64 to a PetscBLASInt (which may be 32-bits in size), generates an error if the PetscBLASInt is not large enough to hold the number.

Synopsis

static inline PetscErrorCode PetscBLASIntCast(MPIU_Count a, PetscBLASInt *b)

Not Collective; No Fortran Support

Input Parameter

• a - the PetscInt value

Output Parameter

• b - the resulting PetscBLASInt value, or NULL if the result is not needed

Note

Errors if the integer is negative since PETSc calls to BLAS/LAPACK never need to cast negative integer inputs

See Also

PetscBLASInt, PetscMPIInt, PetscInt, PetscMPIIntCast(), PetscIntCast()

Level

advanced

Location

include/petscsys.h

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Index of all Sys routines
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