1 files changed, 46 insertions, 0 deletions
diff --git a/dynvars.hpp b/dynvars.hpp
new file mode 100644
index 0000000..fbe852a
--- /dev/null
+++ b/dynvars.hpp
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+// Copyright 2012, Matthias Andreas Benkard.
+
+#pragma once
+
+#ifndef DYNVARS_HPP
+#define DYNVARS_HPP
+
+#include <functional>
+#include <list>
+
+#define thread_local __thread
+
+namespace dynvars {
+
+template <typename T>
+class dynvar {
+private:
+  std::list<T> value_stack;
+public:
+  dynvar() { };
+  dynvar(T val);
+  dynvar<T>& operator =(T val);
+  void push(T val);
+  void pop();
+  T& operator *();
+  T* operator ->();
+  operator bool() const;
+};
+
+template <typename R>
+class dyn {
+  dynvar<R>& myvar;
+public:
+  dyn(dynvar<R>& var, R val);
+  ~dyn();
+};
+
+template <typename R, typename T>
+T
+with(dynvar<R>& var, R val, std::function<T ()> f);
+
+}
+
+#endif  //DYNVARS_HPP
+
+#include "dynvars-impl.hpp"