ISRestorePointRange#
Destroys the traversal description
Synopsis#
#include "petscis.h"
PetscErrorCode ISRestorePointRange(IS pointIS, PetscInt *pStart, PetscInt *pEnd, const PetscInt **points)
Not collective
Input Parameters#
pointIS - The IS object
pStart - The first index, from ISGetPointRange()
pEnd - One past the last index, from ISGetPointRange()
points - The indices, from ISGetPointRange()
Notes#
If the IS contains contiguous indices in an ISSTRIDE, then the indices are contained in [pStart, pEnd) and points = NULL. Otherwise, pStart = 0, pEnd = numIndices, and points is an array of the indices. This supports the following pattern
ISGetPointRange(is, &pStart, &pEnd, &points);
for (p = pStart; p < pEnd; ++p) {
const PetscInt point = points ? points[p] : p;
}
ISRestorePointRange(is, &pstart, &pEnd, &points);
See Also#
ISGetPointRange()
, ISGetPointSubrange()
, ISGetIndices()
, ISCreateStride()
Level#
intermediate
Location#
Index of all IS routines
Table of Contents for all manual pages
Index of all manual pages