From 76729f9670ba63a9146079b081bdb5b5ae0bbd3d Mon Sep 17 00:00:00 2001
From: Kenny Ballou <kballou@devnulllabs.io>
Date: Fri, 28 Feb 2020 15:36:09 -0700
Subject: CASA fork: initial commit

Snapshot from http://cse.unl.edu/~citportal/.
---
 casa/covering/bookkeeping/Options.C | 102 ++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 casa/covering/bookkeeping/Options.C

(limited to 'casa/covering/bookkeeping/Options.C')

diff --git a/casa/covering/bookkeeping/Options.C b/casa/covering/bookkeeping/Options.C
new file mode 100644
index 0000000..cd3c911
--- /dev/null
+++ b/casa/covering/bookkeeping/Options.C
@@ -0,0 +1,102 @@
+// 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];
+}
-- 
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