| /* vector/prop_source.c |
| * |
| * Copyright (C) 1996, 1997, 1998, 1999, 2000 Gerard Jungman, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| int |
| FUNCTION (gsl_vector, isnull) (const TYPE (gsl_vector) * v) |
| { |
| const size_t n = v->size; |
| const size_t stride = v->stride ; |
| |
| size_t j; |
| |
| for (j = 0; j < n; j++) |
| { |
| size_t k; |
| |
| for (k = 0; k < MULTIPLICITY; k++) |
| { |
| if (v->data[MULTIPLICITY * stride * j + k] != 0.0) |
| { |
| return 0; |
| } |
| } |
| } |
| |
| return 1; |
| } |
| |
| int |
| FUNCTION (gsl_vector, ispos) (const TYPE (gsl_vector) * v) |
| { |
| const size_t n = v->size; |
| const size_t stride = v->stride ; |
| |
| size_t j; |
| |
| for (j = 0; j < n; j++) |
| { |
| size_t k; |
| |
| for (k = 0; k < MULTIPLICITY; k++) |
| { |
| if (v->data[MULTIPLICITY * stride * j + k] <= 0.0) |
| { |
| return 0; |
| } |
| } |
| } |
| |
| return 1; |
| } |
| |
| int |
| FUNCTION (gsl_vector, isneg) (const TYPE (gsl_vector) * v) |
| { |
| const size_t n = v->size; |
| const size_t stride = v->stride ; |
| |
| size_t j; |
| |
| for (j = 0; j < n; j++) |
| { |
| size_t k; |
| |
| for (k = 0; k < MULTIPLICITY; k++) |
| { |
| if (v->data[MULTIPLICITY * stride * j + k] >= 0.0) |
| { |
| return 0; |
| } |
| } |
| } |
| |
| return 1; |
| } |
| |