PetscSortSplitReal#
Quick-sort split of an array of PetscReal
s in place.
Synopsis#
#include "petscsys.h"
PetscErrorCode PetscSortSplitReal(PetscInt ncut, PetscInt n, PetscReal a[], PetscInt idx[])
Not Collective
Input Parameters#
ncut - splitig index
n - number of values to sort
Input/Output Parameters#
a - array of values, on output the values are permuted such that its elements satisfy: abs(a[i]) >= abs(a[ncut-1]) for i < ncut and abs(a[i]) <= abs(a[ncut-1]) for i >= ncut
idx - index for array a, on output permuted accordingly
See Also#
Level#
intermediate
Location#
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages