basic/source/sbx/sbxsng.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <tools/errcode.hxx>
  21 #include <basic/sbx.hxx>
  22 #include "sbxconv.hxx"
  23
  24 float ImpGetSingle( const SbxValues* p )
  25 {
  26     SbxValues aTmp;
  27     float nRes;
  28 start:
  29     switch( +p->eType )
  30     {
  31         case SbxNULL:
  32             SbxBase::SetError( SbxERR_CONVERSION );
  33         case SbxEMPTY:
  34             nRes = 0; break;
  35         case SbxCHAR:
  36             nRes = p->nChar; break;
  37         case SbxBYTE:
  38             nRes = p->nByte; break;
  39         case SbxINTEGER:
  40         case SbxBOOL:
  41             nRes = p->nInteger; break;
  42         case SbxERROR:
  43         case SbxUSHORT:
  44             nRes = p->nUShort; break;
  45         case SbxLONG:
  46             nRes = (float) p->nLong; break;
  47         case SbxULONG:
  48             nRes = (float) p->nULong; break;
  49         case SbxSINGLE:
  50             nRes = p->nSingle; break;
  51         case SbxDECIMAL:
  52         case SbxBYREF | SbxDECIMAL:
  53             if( p->pDecimal )
  54                 p->pDecimal->getSingle( nRes );
  55             else
  56                 nRes = 0.0;
  57             break;
  58         case SbxDATE:
  59         case SbxDOUBLE:
  60         case SbxCURRENCY:
  61         case SbxSALINT64:
  62         case SbxSALUINT64:
  63             {
  64             double dVal;
  65             if( p->eType == SbxCURRENCY )
  66                 dVal = ImpCurrencyToDouble( p->nInt64 );
  67             else if( p->eType == SbxSALINT64 )
  68                 dVal = (float) p->nInt64;
  69             else if( p->eType == SbxSALUINT64 )
  70                 dVal = (float) p->uInt64;
  71             else
  72                 dVal = p->nDouble;
  73
  74             if( dVal > SbxMAXSNG )
  75             {
  76                 SbxBase::SetError( SbxERR_OVERFLOW );
  77                 nRes = static_cast< float >(SbxMAXSNG);
  78             }
  79             else if( dVal < SbxMINSNG )
  80             {
  81                 SbxBase::SetError( SbxERR_OVERFLOW );
  82                 nRes = static_cast< float >(SbxMINSNG);
  83             }
  84             // tests for underflow - storing value too small for precision of single
  85             else if( dVal > 0 && dVal < SbxMAXSNG2 )
  86             {
  87                 SbxBase::SetError( SbxERR_OVERFLOW );
  88                 nRes = static_cast< float >(SbxMAXSNG2);
  89             }
  90             else if( dVal < 0 && dVal > SbxMINSNG2 )
  91             {
  92                 SbxBase::SetError( SbxERR_OVERFLOW );
  93                 nRes = static_cast< float >(SbxMINSNG2);
  94             }
  95             else
  96                 nRes = (float) dVal;
  97             break;
  98             }
  99         case SbxBYREF | SbxSTRING:
 100         case SbxSTRING:
 101         case SbxLPSTR:
 102             if( !p->pOUString )
 103                 nRes = 0;
 104             else
 105             {
 106                 double d;
 107                 SbxDataType t;
 108                 if( ImpScan( *p->pOUString, d, t, NULL ) != SbxERR_OK )
 109                     nRes = 0;
 110                 else if( d > SbxMAXSNG )
 111                 {
 112                     SbxBase::SetError( SbxERR_OVERFLOW );
 113                     nRes = static_cast< float >(SbxMAXSNG);
 114                 }
 115                 else if( d < SbxMINSNG )
 116                 {
 117                     SbxBase::SetError( SbxERR_OVERFLOW );
 118                     nRes = static_cast< float >(SbxMINSNG);
 119                 }
 120                 else
 121                     nRes = (float) d;
 122             }
 123             break;
 124         case SbxOBJECT:
 125         {
 126             SbxValue* pVal = PTR_CAST(SbxValue,p->pObj);
 127             if( pVal )
 128                 nRes = pVal->GetSingle();
 129             else
 130             {
 131                 SbxBase::SetError( SbxERR_NO_OBJECT ); nRes = 0;
 132             }
 133             break;
 134         }
 135
 136         case SbxBYREF | SbxCHAR:
 137             nRes = *p->pChar; break;
 138         case SbxBYREF | SbxBYTE:
 139             nRes = *p->pByte; break;
 140         case SbxBYREF | SbxINTEGER:
 141         case SbxBYREF | SbxBOOL:
 142             nRes = *p->pInteger; break;
 143         case SbxBYREF | SbxLONG:
 144             nRes = (float) *p->pLong; break;
 145         case SbxBYREF | SbxULONG:
 146             nRes = (float) *p->pULong; break;
 147         case SbxBYREF | SbxERROR:
 148         case SbxBYREF | SbxUSHORT:
 149             nRes = *p->pUShort; break;
 150         case SbxBYREF | SbxSINGLE:
 151             nRes = *p->pSingle; break;
 152         // from here had to be tested
 153         case SbxBYREF | SbxDATE:
 154         case SbxBYREF | SbxDOUBLE:
 155             aTmp.nDouble = *p->pDouble; goto ref;
 156         case SbxBYREF | SbxSALINT64:
 157         case SbxBYREF | SbxCURRENCY:
 158             aTmp.nInt64 = *p->pnInt64; goto ref;
 159         case SbxBYREF | SbxSALUINT64:
 160             aTmp.uInt64 = *p->puInt64; goto ref;
 161         ref:
 162             aTmp.eType = SbxDataType( p->eType & 0x0FFF );
 163             p = &aTmp; goto start;
 164
 165         default:
 166             SbxBase::SetError( SbxERR_CONVERSION ); nRes = 0;
 167     }
 168     return nRes;
 169 }
 170
 171 void ImpPutSingle( SbxValues* p, float n )
 172 {
 173     SbxValues aTmp;
 174 start:
 175     switch( +p->eType )
 176     {
 177         case SbxCHAR:
 178             aTmp.pChar = &p->nChar; goto direct;
 179         case SbxBYTE:
 180             aTmp.pByte = &p->nByte; goto direct;
 181         case SbxINTEGER:
 182         case SbxBOOL:
 183             aTmp.pInteger = &p->nInteger; goto direct;
 184         case SbxLONG:
 185             aTmp.pLong = &p->nLong; goto direct;
 186         case SbxULONG:
 187             aTmp.pULong = &p->nULong; goto direct;
 188         case SbxERROR:
 189         case SbxUSHORT:
 190             aTmp.pUShort = &p->nUShort; goto direct;
 191         case SbxCURRENCY:
 192         case SbxSALINT64:
 193             aTmp.pnInt64 = &p->nInt64; goto direct;
 194         case SbxSALUINT64:
 195             aTmp.puInt64 = &p->uInt64; goto direct;
 196         case SbxDECIMAL:
 197         case SbxBYREF | SbxDECIMAL:
 198             {
 199             SbxDecimal* pDec = ImpCreateDecimal( p );
 200             if( !pDec->setSingle( n ) )
 201                 SbxBase::SetError( SbxERR_OVERFLOW );
 202             break;
 203             }
 204         direct:
 205             aTmp.eType = SbxDataType( p->eType | SbxBYREF );
 206             p = &aTmp; goto start;
 207
 208         // from here no tests
 209         case SbxSINGLE:
 210             p->nSingle = n; break;
 211         case SbxDATE:
 212         case SbxDOUBLE:
 213             p->nDouble = n; break;
 214
 215         case SbxBYREF | SbxSTRING:
 216         case SbxSTRING:
 217         case SbxLPSTR:
 218         {
 219             if( !p->pOUString )
 220                 p->pOUString = new ::rtl::OUString;
 221             ImpCvtNum( (double) n, 6, *p->pOUString );
 222             break;
 223         }
 224         case SbxOBJECT:
 225         {
 226             SbxValue* pVal = PTR_CAST(SbxValue,p->pObj);
 227             if( pVal )
 228                 pVal->PutSingle( n );
 229             else
 230                 SbxBase::SetError( SbxERR_NO_OBJECT );
 231             break;
 232         }
 233         case SbxBYREF | SbxCHAR:
 234             if( n > SbxMAXCHAR )
 235             {
 236                 SbxBase::SetError( SbxERR_OVERFLOW ); n = SbxMAXCHAR;
 237             }
 238             else if( n < SbxMINCHAR )
 239             {
 240                 SbxBase::SetError( SbxERR_OVERFLOW ); n = SbxMINCHAR;
 241             }
 242             *p->pChar = (sal_Unicode) n; break;
 243         case SbxBYREF | SbxBYTE:
 244             if( n > SbxMAXBYTE )
 245             {
 246                 SbxBase::SetError( SbxERR_OVERFLOW ); n = SbxMAXBYTE;
 247             }
 248             else if( n < 0 )
 249             {
 250                 SbxBase::SetError( SbxERR_OVERFLOW ); n = 0;
 251             }
 252             *p->pByte = (sal_uInt8) n; break;
 253         case SbxBYREF | SbxINTEGER:
 254         case SbxBYREF | SbxBOOL:
 255             if( n > SbxMAXINT )
 256             {
 257                 SbxBase::SetError( SbxERR_OVERFLOW ); n = SbxMAXINT;
 258             }
 259             else if( n < SbxMININT )
 260             {
 261                 SbxBase::SetError( SbxERR_OVERFLOW ); n = SbxMININT;
 262             }
 263             *p->pInteger = (sal_Int16) n; break;
 264         case SbxBYREF | SbxERROR:
 265         case SbxBYREF | SbxUSHORT:
 266             if( n > SbxMAXUINT )
 267             {
 268                 SbxBase::SetError( SbxERR_OVERFLOW ); n = SbxMAXUINT;
 269             }
 270             else if( n < 0 )
 271             {
 272                 SbxBase::SetError( SbxERR_OVERFLOW ); n = 0;
 273             }
 274             *p->pUShort = (sal_uInt16) n; break;
 275         case SbxBYREF | SbxLONG:
 276         {
 277             sal_Int32 i;
 278             if( n > SbxMAXLNG )
 279             {
 280                 SbxBase::SetError( SbxERR_OVERFLOW ); i = SbxMAXLNG;
 281             }
 282             else if( n < SbxMINLNG )
 283             {
 284                 SbxBase::SetError( SbxERR_OVERFLOW ); i = SbxMINLNG;
 285             }
 286             else
 287             {
 288                 i = sal::static_int_cast< sal_Int32 >(n);
 289             }
 290             *p->pLong = i; break;
 291         }
 292         case SbxBYREF | SbxULONG:
 293         {
 294             sal_uInt32 i;
 295             if( n > SbxMAXULNG )
 296             {
 297                 SbxBase::SetError( SbxERR_OVERFLOW ); i = SbxMAXULNG;
 298             }
 299             else if( n < 0 )
 300             {
 301                 SbxBase::SetError( SbxERR_OVERFLOW ); i = 0;
 302             }
 303             else
 304             {
 305                 i = sal::static_int_cast< sal_uInt32 >(n);
 306             }
 307             *p->pULong = i; break;
 308         }
 309         case SbxBYREF | SbxSINGLE:
 310             *p->pSingle = n; break;
 311         case SbxBYREF | SbxDATE:
 312         case SbxBYREF | SbxDOUBLE:
 313             *p->pDouble = (double) n; break;
 314         case SbxBYREF | SbxSALINT64:
 315             *p->pnInt64 = (sal_Int64)n; break;
 316         case SbxBYREF | SbxSALUINT64:
 317             *p->puInt64 = (sal_uInt64)n; break;
 318         case SbxBYREF | SbxCURRENCY:
 319             double d;
 320             if( n > SbxMAXCURR )
 321             {
 322                 SbxBase::SetError( SbxERR_OVERFLOW ); d = SbxMAXCURR;
 323             }
 324             else if( n < SbxMINCURR )
 325             {
 326                 SbxBase::SetError( SbxERR_OVERFLOW ); d = SbxMINCURR;
 327             }
 328             else
 329             {
 330                 d = n;
 331             }
 332             *p->pnInt64 = ImpDoubleToCurrency( d ); break;
 333
 334         default:
 335             SbxBase::SetError( SbxERR_CONVERSION );
 336     }
 337 }
 338
 339 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */