from meeting

1 files changed, 48 insertions, 0 deletions

diff --git a/src/util/exception.h b/src/util/exception.h
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index 000000000..792a98701
--- /dev/null
+++ b/src/util/exception.h
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+/*********************                                           -*- C++ -*-  */
+/** exception.h
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009 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.
+ **
+ ** Exception class.
+ **/
+
+#ifndef __CVC4_EXCEPTION_H
+#define __CVC4_EXCEPTION_H
+
+#include <string>
+#include <iostream>
+
+namespace CVC4 {
+
+  class Exception {
+  protected:
+    std::string d_msg;
+  public:
+    // Constructors
+    Exception(): d_msg("Unknown exception") { }
+    Exception(const std::string& msg): d_msg(msg) { }
+    Exception(const char* msg): d_msg(msg) { }
+    // Destructor
+    virtual ~Exception() { }
+    // NON-VIRTUAL METHODs for setting and printing the error message
+    void setMessage(const std::string& msg) { d_msg = msg; }
+    // Printing: feel free to redefine toString().  When inherited,
+    // it's recommended that this method print the type of exception
+    // before the actual message.
+    virtual std::string toString() const { return d_msg; }
+    // No need to overload operator<< for the inherited classes
+    friend std::ostream& operator<<(std::ostream& os, const Exception& e);
+
+  }; // end of class Exception
+
+  inline std::ostream& operator<<(std::ostream& os, const Exception& e) {
+    return os << e.toString();
+  }
+
+}/* CVC4 namespace */
+
+#endif /* __CVC4_EXCEPTION_H */