Partial merge of integers work; this is simple B&B and some pseudoboolean

infrastructure, and takes care not to affect CVC4's performance on LRA
benchmarks.

1 files changed, 49 insertions, 0 deletions

diff --git a/src/util/pseudoboolean.cpp b/src/util/pseudoboolean.cpp
new file mode 100644
index 000000000..3fa7a774e
--- /dev/null
+++ b/src/util/pseudoboolean.cpp
@@ -0,0 +1,49 @@
+/*********************                                                        */
+/*! \file pseudoboolean.cpp
+ ** \verbatim
+ ** Original author: mdeters
+ ** Major contributors: none
+ ** Minor contributors (to current version): none
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009, 2010, 2011  The Analysis of Computer Systems Group (ACSys)
+ ** Courant Institute &of Mathematical Sciences
+ ** New York University
+ ** See the file COPYING in the top-level source directory for licensing
+ ** information.\endverbatim
+ **
+ ** \brief A pseudoboolean constant
+ **
+ ** A pseudoboolean constant.
+ **/
+
+#include "util/pseudoboolean.h"
+
+namespace CVC4 {
+
+Pseudoboolean::Pseudoboolean(bool b) :
+  d_value(b) {
+}
+
+Pseudoboolean::Pseudoboolean(int i) {
+  CheckArgument(i == 0 || i == 1, i);
+  d_value = (i == 1);
+}
+
+Pseudoboolean::Pseudoboolean(const Integer& i) {
+  CheckArgument(i == 0 || i == 1, i);
+  d_value = (i == 1);
+}
+
+Pseudoboolean::operator bool() const {
+  return d_value;
+}
+
+Pseudoboolean::operator int() const {
+  return d_value ? 1 : 0;
+}
+
+Pseudoboolean::operator Integer() const {
+  return d_value ? 1 : 0;
+}
+
+}/* CVC4 namespace */