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-rw-r--r--casa/covering/bookkeeping/Options.C102
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diff --git a/casa/covering/bookkeeping/Options.C b/casa/covering/bookkeeping/Options.C
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+// Copyright 2008, 2009 Brady J. Garvin
+
+// This file is part of Covering Arrays by Simulated Annealing (CASA).
+
+// CASA 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 3 of the License, or
+// (at your option) any later version.
+
+// CASA 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 CASA. If not, see <http://www.gnu.org/licenses/>.
+
+
+#include "covering/bookkeeping/Options.H"
+
+Options::Options() :
+ cumulativeValueCounts(0),
+ owningOptions(0) {}
+
+Options::Options(Array<unsigned>values) :
+ cumulativeValueCounts(values.getSize()) {
+ unsigned cumulativeValueCount = 0;
+ for (unsigned i = 0; i < values.getSize(); ++i) {
+ cumulativeValueCount += values[i];
+ cumulativeValueCounts[i] = cumulativeValueCount;
+ }
+ owningOptions = Array<unsigned>(cumulativeValueCount);
+ for (unsigned i = 0, j = 0; i < values.getSize(); ++i) {
+ for (unsigned k = values[i]; k--;) {
+ owningOptions[j++] = i;
+ }
+ }
+}
+
+Options::Options(const Options&copy) :
+ cumulativeValueCounts(copy.cumulativeValueCounts),
+ owningOptions(copy.owningOptions) {}
+
+unsigned Options::getSize() const {
+ return cumulativeValueCounts.getSize();
+}
+
+unsigned Options::getFirstSymbol(unsigned option) const {
+ return option ? cumulativeValueCounts[option - 1] : 0;
+}
+
+Array<unsigned>Options::getFirstSymbols() const {
+ unsigned size = cumulativeValueCounts.getSize();
+ Array<unsigned>result(size);
+ for (unsigned i = size; i-- > 1;) {
+ result[i] = cumulativeValueCounts[i - 1];
+ }
+ if (size) {
+ result[0] = 0;
+ }
+ return result;
+}
+
+unsigned Options::getSymbolCount(unsigned option) const {
+ return option ?
+ (cumulativeValueCounts[option] - cumulativeValueCounts[option - 1]) :
+ cumulativeValueCounts[0];
+}
+
+Array<unsigned>Options::getSymbolCounts() const {
+ unsigned size = cumulativeValueCounts.getSize();
+ Array<unsigned>result(size);
+ for (unsigned i = size; i-- > 1;) {
+ result[i] = cumulativeValueCounts[i] - cumulativeValueCounts[i - 1];
+ }
+ if (size) {
+ result[0] = cumulativeValueCounts[0];
+ }
+ return result;
+}
+
+unsigned Options::getLastSymbol(unsigned option) const {
+ return cumulativeValueCounts[option] - 1;
+}
+
+unsigned Options::getRandomSymbol(unsigned option) const {
+ return rand() % getSymbolCount(option) + getFirstSymbol(option);
+}
+
+unsigned Options::getOtherRandomSymbol(unsigned option, unsigned exclude)
+ const {
+ unsigned count = getSymbolCount(option);
+ if (count == 1) {
+ return getFirstSymbol(option);
+ }
+ unsigned result = rand() % (count - 1) + getFirstSymbol(option);
+ return (result >= exclude) ? (result + 1) : result;
+}
+
+unsigned Options::getOption(unsigned symbol) const {
+ return owningOptions[symbol];
+}