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- /* integration/qpsrt2.c
- *
- * Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- /* The smallest interval has the largest error. Before bisecting
- decrease the sum of the errors over the larger intervals
- (error_over_large_intervals) and perform extrapolation. */
-
- static int
- increase_nrmax (gsl_integration_workspace * workspace);
-
- static int
- increase_nrmax (gsl_integration_workspace * workspace)
- {
- int k;
- int id = workspace->nrmax;
- int jupbnd;
-
- const size_t * level = workspace->level;
- const size_t * order = workspace->order;
-
- size_t limit = workspace->limit ;
- size_t last = workspace->size - 1 ;
-
- if (last > (1 + limit / 2))
- {
- jupbnd = limit + 1 - last;
- }
- else
- {
- jupbnd = last;
- }
-
- for (k = id; k <= jupbnd; k++)
- {
- size_t i_max = order[workspace->nrmax];
-
- workspace->i = i_max ;
-
- if (level[i_max] < workspace->maximum_level)
- {
- return 1;
- }
-
- workspace->nrmax++;
-
- }
- return 0;
- }
-
- static int
- large_interval (gsl_integration_workspace * workspace)
- {
- size_t i = workspace->i ;
- const size_t * level = workspace->level;
-
- if (level[i] < workspace->maximum_level)
- {
- return 1 ;
- }
- else
- {
- return 0 ;
- }
- }
-
-