// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).

 // All rights reserved.

 // This component and the accompanying materials are made available

 // under the terms of "Eclipse Public License v1.0"

 // which accompanies this distribution, and is available

 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 // Name        : wcrtomb.cpp

 // Part of     : MRT LIBC

 // Contains the source for the wcrtomb API implementation.

 // Version     :

 //

 #include <e32std.h>

 #include <utf.h>

 #include <stdlib.h>

 #include <string.h>

 #include <wchar.h>

 #include <stdio.h>

 #include "wcharcnv.h"

 #if (defined(__SYMBIAN32__) && (defined(__WINSCW__) || defined(__WINS__)))

 #include "libc_wsd_defs.h"

 #endif 

 #ifdef EMULATOR

 GET_STATIC_VAR_FROM_TLS(wcrtomb_mbs, mbstate_t)

 #define mbs (*GET_WSD_VAR_NAME(wcrtomb_mbs, s)())

 #endif //EMULATOR

 //-----------------------------------------------------------------------------

 //Function Name : size_t wcrtomb (char * mbchar, wchar_t wc, mbstate_t* ps) 

 //Description   : Converts a wide character to a multibyte character

 //Return Value  : return If mbchar is null, the return value is true (non-zero)

 //if multibyte characters have state-dependent encodings, or false (zero) 

 //if they do not.

 //-----------------------------------------------------------------------------

 extern "C" {

 EXPORT_C size_t wcrtomb (char * mbchar, wchar_t wc, mbstate_t* ps)

 {

 #ifndef EMULATOR	

 	static mbstate_t mbs;

 #endif //EMULATOR	

 	if (ps == NULL)

 		ps = &mbs;

 	mbstate_t *state = NULL;

 	if(ps)

 	{

 		state = ps;

 	}

 	else

 	{

 		state =	&mbs;

 	}

 	if (mbchar)

 	{

 		//deal with the special null character case

 		if (L'\0' == wc)

 		{

 			*mbchar = '\0';

 			if ( state )

     	   	{

     	   		memset(state,0,sizeof(state));	

     	    	state->__count = _EUTF16InitialState;

     	    }

 			return (1);

 		}

 		//return value of 0 is possible if the first half of a surrogate pair seen

 		//crash is possible if mbchar is not at least MB_CUR_MAX bytes long

 		return _Utf16ToUtf8(mbchar,wc, state,MB_CUR_MAX);

 	}

 	//calling with a null dest string is used to initialise shift state

 	//effect is exactly as if internal dst buffer was used.

 	//therefore we always return 1.

 	else

 	{

 	    	if ( state )

 	        {

 	        	memset(state,0,sizeof(state));	

 	        	state->__count = _EUTF16InitialState;

 	        }

 			return (1);

 	}

 } //end of function

 } //extern "C"