1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/epoc32/include/stdapis/stlportv5/stdcpp_support.h	Wed Mar 31 12:33:34 2010 +0100
     1.3 @@ -0,0 +1,76 @@
     1.4 +/*
     1.5 +* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description:
    1.18 +* Name        : stdcpp_support.h
    1.19 +* Part of     : standard c++ library.
    1.20 +* 
    1.21 +*
    1.22 +*/
    1.23 +
    1.24 +
    1.25 +
    1.26 +#ifndef _STDCPP_SUPPORT_H_
    1.27 +#define _STDCPP_SUPPORT_H_
    1.28 +
    1.29 +#include <exception>
    1.30 +//This is required for the TRAP macro
    1.31 +#include <e32cmn.h>
    1.32 +// This is required for the Symbian error numbers
    1.33 +#include <e32err.h>
    1.34 +
    1.35 +/* A utility funtion that takes a SymbianC++ error number and throws a corresponding 
    1.36 +C++ exception. This mapping is done based on what is mentioned in Chapter 19.1 of 
    1.37 +the C++ specification and Symbian's e32err.h.
    1.38 +*/
    1.39 +IMPORT_C void TranslateSymErrorToCppException(TInt);
    1.40 +
    1.41 +
    1.42 +/* A utility function that takes an instance of std::exception and returns a
    1.43 +corresponding SymbianC++ error number. This mapping is done based on what is
    1.44 +mentioned in Chapter 19.1 of the C++ specification and Symbian's e32err.h.
    1.45 +*/
    1.46 +IMPORT_C TInt TranslateCppExceptionToSymError(const std::exception&);
    1.47 +
    1.48 +
    1.49 +/* Executes the set of C++ statements _s under a trap harness and throws a suitable  
    1.50 +C++ exception that matches the Symbian error code.
    1.51 +
    1.52 +Use this macro as a C++ statement to translate a User::Leave
    1.53 +
    1.54 +_s can consist of multiple C++ statements; in theory, _s can consist
    1.55 +of any legal C++ code but in practice, such statements consist of Symbian C++
    1.56 +function calls that may leave, e.g. FooL() or an assignment of some value to 
    1.57 +the result of a function call, e.g. functionValue=GetFooL().
    1.58 +*/
    1.59 +#define TRANSLATE_SYM_CPP_LEAVES(_s)			\
    1.60 +	{											\
    1.61 +		TInt err;								\
    1.62 +		TRAP(err, _s);							\
    1.63 +		if(err) TranslateSymErrorToCppException(err);	\
    1.64 +	}
    1.65 +
    1.66 +class Symbian_error : public std::exception
    1.67 +{
    1.68 +public:
    1.69 +	/* A Symbian specific error can be encapsulated within this object*/
    1.70 +	Symbian_error(TInt e):error_code(e) {}
    1.71 +
    1.72 +	inline TInt error() { return error_code; }
    1.73 +private:
    1.74 +	TInt error_code;
    1.75 +};
    1.76 +
    1.77 +
    1.78 +#endif //STDCPP_SUPPORT_H
    1.79 +