1 files changed, 3 insertions, 2 deletions
diff --git a/examples/Kaleidoscope/Chapter2/toy.cpp b/examples/Kaleidoscope/Chapter2/toy.cpp
index 23d45ae..cd90139 100644
--- a/examples/Kaleidoscope/Chapter2/toy.cpp
+++ b/examples/Kaleidoscope/Chapter2/toy.cpp
@@ -1,3 +1,4 @@
+#include <cctype>
 #include <cstdio>
 #include <cstdlib>
 #include <map>
@@ -74,7 +75,7 @@ static int gettok() {
 //===----------------------------------------------------------------------===//
 // Abstract Syntax Tree (aka Parse Tree)
 //===----------------------------------------------------------------------===//
-
+namespace {
 /// ExprAST - Base class for all expression nodes.
 class ExprAST {
 public:
@@ -126,6 +127,7 @@ class FunctionAST {
 public:
   FunctionAST(PrototypeAST *proto, ExprAST *body) {}
 };
+} // end anonymous namespace
 
 //===----------------------------------------------------------------------===//
 // Parser
@@ -157,7 +159,6 @@ static int GetTokPrecedence() {
 /// Error* - These are little helper functions for error handling.
 ExprAST *Error(const char *Str) { fprintf(stderr, "Error: %s\n", Str);return 0;}
 PrototypeAST *ErrorP(const char *Str) { Error(Str); return 0; }
-FunctionAST *ErrorF(const char *Str) { Error(Str); return 0; }
 
 static ExprAST *ParseExpression();