1 files changed, 33 insertions, 0 deletions
diff --git a/src/expr/kind_middle.h b/src/expr/kind_middle.h
new file mode 100644
index 000000000..6c352c3c9
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+++ b/src/expr/kind_middle.h
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+/*********************                                           -*- C++ -*-  */
+/** kind_middle.h
+ ** Original author: 
+ ** Major contributors: none
+ ** Minor contributors (to current version): none
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009, 2010  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.
+ **
+ ** Kinds of Nodes.
+ **/
+
+  LAST_KIND
+
+};/* enum Kind */
+
+inline std::ostream& operator<<(std::ostream&, CVC4::Kind) CVC4_PUBLIC;
+inline std::ostream& operator<<(std::ostream& out, CVC4::Kind k) {
+  using namespace CVC4;
+
+  switch(k) {
+
+  /* special cases */
+  case UNDEFINED_KIND: out << "UNDEFINED_KIND"; break;
+  case NULL_EXPR: out << "NULL"; break;
+
+  case EQUAL: out << "EQUAL"; break;
+  case ITE: out << "ITE"; break;
+  case SKOLEM: out << "SKOLEM"; break;
+  case VARIABLE: out << "VARIABLE"; break;