PetscIsNormalReal#

Returns PETSC_TRUE if the input value satisfies isnormal()

Synopsis#

#if defined(PETSC_USE_REAL___FLOAT128) || defined(PETSC_USE_REAL___FP16)
PetscBool PetscIsNormalReal(PetscReal a)

Input Parameter#

a - the PetscReal Value

Developer Notes#

Uses the C99 standard isnormal() on systems where they exist.

Uses isnormalq() with __float128

Otherwise always returns true

See Also#

PetscIsInfReal(), PetscIsNanReal()

Level#

beginner

Location#

src/sys/utils/mathinf.c

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