sl@0: // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // STDIO functions implemented over EPOC32
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32std.h>
sl@0: #include <_ansi.h>
sl@0: #include <stdio_r.h>
sl@0: 
sl@0: #define UNUSED_VAR(a) a = a
sl@0: 
sl@0: extern "C" {
sl@0: int e32cvt (char *buf, int buflen, double d, int width, int prec, int /*flags*/, int fchar)
sl@0: 	{
sl@0: 	TPtr8 res((TText8*)buf, buflen);
sl@0: 	TBuf8<0x50> fmt;
sl@0: 	TBool capitalE=EFalse;
sl@0: 	switch(fchar)
sl@0: 	{
sl@0: 	case 'f':
sl@0: 		fchar='f';
sl@0: 		break;
sl@0: 
sl@0: 	case 'E':
sl@0: 		capitalE=ETrue;	// and fallthrough
sl@0: 	case 'e':
sl@0: 		fchar='e';
sl@0: 		break;
sl@0: 
sl@0: 	case 'G':
sl@0: 		capitalE=ETrue;	// and fallthrough
sl@0: 	case 'g':
sl@0: 		fchar='g';
sl@0: 		break;
sl@0: 	default:
sl@0: 		return 0;
sl@0: 	}
sl@0: 	// construct a format string for use with TDes::Format - we can't use the
sl@0: 	// VFPRINTF original because it doesn't quite match and it might involve '*'
sl@0: 	// to read field widths from VFPRINTF arguments.
sl@0: 	fmt.Zero();
sl@0: 	fmt.Append('%');
sl@0: 	// flags?
sl@0: 	if (width)
sl@0: 		fmt.AppendNum(width);
sl@0: 	if (prec>=0)
sl@0: 		{
sl@0: 		fmt.Append('.');
sl@0: 		fmt.AppendNum(prec);
sl@0: 		}
sl@0: 	fmt.Append(fchar);
sl@0: 	TRAPD(r,res.Format(fmt,d));
sl@0:     UNUSED_VAR(r);
sl@0: 	if (capitalE)
sl@0: 		{
sl@0: 		TInt pos=res.Locate('e');
sl@0: 		if (pos!=KErrNotFound)
sl@0: 			res[pos]='E';
sl@0: 		}
sl@0: 	return res.Length();
sl@0: 	}
sl@0: }