petsc-3.14.6 2021-03-30
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PetscBLASIntCast

 casts a PetscInt (which may be 64 bits in size) 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

PETSC_STATIC_INLINE PetscErrorCode PetscBLASIntCast(PetscInt a,PetscBLASInt *b)
Not Collective

Input Parameter

a - the PetscInt value

Output Parameter

b - the resulting PetscBLASInt value

Notes

Not available from Fortran 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

Examples

src/ts/tutorials/ex50.c.html

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