* reviewed BooleanSimplification, added documentation & unit test

* work around a lexer ambiguity in CVC grammar
* add support for tracing antlr parser/lexer
* add parsing support for more language features
* initial parameterized types parsing work to support Andy's work

2 files changed, 3 insertions, 3 deletions

diff --git a/src/expr/expr_template.cpp b/src/expr/expr_template.cpp
index 74bfd3f2b..b7000fea6 100644
--- a/src/expr/expr_template.cpp
+++ b/src/expr/expr_template.cpp
@@ -188,11 +188,11 @@ size_t Expr::getNumChildren() const {
   return d_node->getNumChildren();
 }
 
-Expr Expr::getChild(unsigned int i) const {
+Expr Expr::operator[](unsigned i) const {
   ExprManagerScope ems(*this);
   Assert(d_node != NULL, "Unexpected NULL expression pointer!");
   Assert(i >= 0 && i < d_node->getNumChildren(), "Child index out of bounds");
-  return Expr(d_exprManager,new Node((*d_node)[i]));
+  return Expr(d_exprManager, new Node((*d_node)[i]));
 }
 
 bool Expr::hasOperator() const {
diff --git a/src/expr/expr_template.h b/src/expr/expr_template.h
index 291016044..24cb6dc5d 100644
--- a/src/expr/expr_template.h
+++ b/src/expr/expr_template.h
@@ -267,7 +267,7 @@ public:
    * @param i the index of the child to retrieve
    * @return the child
    */
-  Expr getChild(unsigned int i) const;
+  Expr operator[](unsigned i) const;
 
   /**
    * Check if this is an expression that has an operator.