michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef __txCore_h__
michael@0: #define __txCore_h__
michael@0: 
michael@0: #include "nscore.h"
michael@0: #include "nsDebug.h"
michael@0: #include "nsISupportsImpl.h"
michael@0: 
michael@0: class nsAString;
michael@0: 
michael@0: class txObject
michael@0: {
michael@0: public:
michael@0:     txObject()
michael@0:     {
michael@0:         MOZ_COUNT_CTOR(txObject);
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Deletes this txObject
michael@0:      */
michael@0:     virtual ~txObject()
michael@0:     {
michael@0:         MOZ_COUNT_DTOR(txObject);
michael@0:     }
michael@0: };
michael@0: 
michael@0: /**
michael@0:  * Utility class for doubles
michael@0:  */
michael@0: class txDouble
michael@0: {
michael@0: public:
michael@0:     /**
michael@0:      * Converts the value of the given double to a string, and appends
michael@0:      * the result to the destination string.
michael@0:      */
michael@0:     static void toString(double aValue, nsAString& aDest);
michael@0: 
michael@0:     /**
michael@0:      * Converts the given String to a double, if the string value does not
michael@0:      * represent a double, NaN will be returned.
michael@0:      */
michael@0:     static double toDouble(const nsAString& aStr);
michael@0: };
michael@0: 
michael@0: #endif