resurrecting triple.h from r1023 (after which it was removed)

2 files changed, 45 insertions, 1 deletions

diff --git a/src/util/Makefile.am b/src/util/Makefile.am
index 837837cd6..4f853b9e3 100644
--- a/src/util/Makefile.am
+++ b/src/util/Makefile.am
@@ -32,7 +32,8 @@ libutil_la_SOURCES = \
 	stats.h \
 	stats.cpp \
 	dynamic_array.h \
-	language.h
+	language.h \
+	triple.h
 
 BUILT_SOURCES = \
 	rational.h \
diff --git a/src/util/triple.h b/src/util/triple.h
new file mode 100644
index 000000000..9229a9eee
--- /dev/null
+++ b/src/util/triple.h
@@ -0,0 +1,43 @@
+/*********************                                                        */
+/*! \file triple.h
+ ** \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 Similar to std::pair<>, for triples
+ **
+ ** Similar to std::pair<>, for triples.  Once we move to c++0x, this
+ ** can be removed in favor of (standard-provided) N-ary tuples.
+ **/
+
+#include "cvc4_private.h"
+
+#ifndef __CVC4__TRIPLE_H
+#define __CVC4__TRIPLE_H
+
+namespace CVC4 {
+
+template <class T1, class T2, class T3>
+class triple {
+public:
+  T1 first;
+  T2 second;
+  T3 third;
+};
+
+template <class T1, class T2, class T3>
+inline triple<T1, T2, T3>
+make_triple(const T1& t1, const T2& t2, const T3& t3) {
+  return triple<T1, T2, T3>(t1, t2, t3);
+}
+
+}/* CVC4 namespace */
+
+#endif /* __CVC4__TRIPLE_H */