Index: C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/conjure1/compiler.cpp
===================================================================
--- C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/conjure1/compiler.cpp	(revision 72466)
+++ C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/conjure1/compiler.cpp	(revision 72467)
@@ -45,7 +45,8 @@
 
     void function::add_var(std::string const& name)
     {
-        variables[name] = variables.size();
+        size_t n = variables.size();
+        variables[name] = n;
     }
 
     void function::link_to(std::string const& name, std::size_t address)
Index: C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/calc7/compiler.cpp
===================================================================
--- C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/calc7/compiler.cpp	(revision 72466)
+++ C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/calc7/compiler.cpp	(revision 72467)
@@ -40,7 +40,8 @@
 
     void program::add_var(std::string const& name)
     {
-        variables[name] = variables.size();
+        size_t n = variables.size();
+        variables[name] = n;
     }
 
     void program::print_variables(std::vector<int> const& stack) const
Index: C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/calc8/compiler.cpp
===================================================================
--- C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/calc8/compiler.cpp	(revision 72466)
+++ C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/calc8/compiler.cpp	(revision 72467)
@@ -42,7 +42,8 @@
 
     void program::add_var(std::string const& name)
     {
-        variables[name] = variables.size();
+        size_t n = variables.size();
+        variables[name] = n;
     }
 
     void program::print_variables(std::vector<int> const& stack) const
Index: C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/mini_c/compiler.cpp
===================================================================
--- C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/mini_c/compiler.cpp	(revision 72466)
+++ C:/CVS/boost/libs/spirit/example/qi/compiler_tutorial/mini_c/compiler.cpp	(revision 72467)
@@ -45,7 +45,8 @@
 
     void function::add_var(std::string const& name)
     {
-        variables[name] = variables.size();
+        size_t n = variables.size();
+        variables[name] = n;
     }
 
     void function::link_to(std::string const& name, std::size_t address)