--- /dev/null
+
+///////////////////////////////////////////////////////////////////////////
+// This program is free software: you can redistribute it and/or modify //
+// it under the terms of the version 3 of the GNU General Public License //
+// as published by the Free Software Foundation. //
+// //
+// 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, see <http://www.gnu.org/licenses/>. //
+// //
+// Written by Francois Fleuret, (C) IDIAP //
+// Contact <francois.fleuret@idiap.ch> for comments & bug reports //
+///////////////////////////////////////////////////////////////////////////
+
+#include "interval.h"
+
+void Interval::set(scalar_t x) {
+ min = x;
+ max = x;
+}
+
+void Interval::set(scalar_t a, scalar_t b) {
+ min = a;
+ max = b;
+}
+
+void Interval::set(Interval *i) {
+ min = i->min;
+ max = i->max;
+}
+
+void Interval::set_subinterval(Interval *i, int k, int nb) {
+ min = i->min + ((i->max - i->min) * scalar_t(k))/scalar_t(nb);
+ max = i->min + ((i->max - i->min) * scalar_t(k + 1))/scalar_t(nb);
+}
+
+void Interval::swallow(Interval *i) {
+ min = ::min(min, i->min);
+ max = ::max(max, i->max);
+}
+
+ostream &operator << (ostream &out, const Interval &i) {
+ return out << "[" << i.min << ", " << i.max << "]";
+}