epoc32/include/stdapis/stdarg_e.h
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100
branchSymbian3
changeset 4 837f303aceeb
parent 2 2fe1408b6811
permissions -rw-r--r--
Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed.
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/*
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* This is all somewhat tortured because ANSI C says that stdio.h is not supposed 
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* to define va_list: it needs to have access to that data type, but must not use that name.
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* Instead stdio.h should use an __ name, which is safe because it is reserved for 
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* the implementation.  Hence __e32_va_list.
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* 
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*
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*/
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#ifndef _STDARG_E_H
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#define _STDARG_E_H
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/**
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EPOC32 definitions, extracted from E32DEFS.H
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*/
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typedef char* __e32_va_list;
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#define va_start(ap,pn) (ap=(__e32_va_list)&pn+((sizeof(pn)+sizeof(int)-1)&~(sizeof(int)-1)),(void)0)
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#define va_arg(ap,type) (ap+=((sizeof(type)+sizeof(int)-1)&~(sizeof(int)-1)),(*(type *)(ap-((sizeof(type)+sizeof(int)-1)&~(sizeof(int)-1)))))
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#define va_end(ap) (ap=0,(void)0)
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#endif