petsc-3.9.4 2018-09-11
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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

Notes: uses the C99 standard isnormal() on systems where they exist. Uses isnormalq() with __float128 Otherwises always returns true

Level

beginner

Location

src/sys/utils/mathinf.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages