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 <sal/config.h>
  21
  22 #include <o3tl/float_int_conversion.hxx>
  23 #include <vcl/errcode.hxx>
  24 #include <basic/sberrors.hxx>
  25 #include "sbxconv.hxx"
  26
  27 float ImpGetSingle( const SbxValues* p )
  28 {
  29     SbxValues aTmp;
  30     float nRes;
  31 start:
  32     switch( +p->eType )
  33     {
  34         case SbxNULL:
  35             SbxBase::SetError( ERRCODE_BASIC_CONVERSION );
  36             [[fallthrough]];
  37         case SbxEMPTY:
  38             nRes = 0; break;
  39         case SbxCHAR:
  40             nRes = p->nChar; break;
  41         case SbxBYTE:
  42             nRes = p->nByte; break;
  43         case SbxINTEGER:
  44         case SbxBOOL:
  45             nRes = p->nInteger; break;
  46         case SbxERROR:
  47         case SbxUSHORT:
  48             nRes = p->nUShort; break;
  49         case SbxLONG:
  50             nRes = static_cast<float>(p->nLong); break;
  51         case SbxULONG:
  52             nRes = static_cast<float>(p->nULong); break;
  53         case SbxSINGLE:
  54             nRes = p->nSingle; break;
  55         case SbxDECIMAL:
  56         case SbxBYREF | SbxDECIMAL:
  57             if( p->pDecimal )
  58                 p->pDecimal->getSingle( nRes );
  59             else
  60                 nRes = 0.0;
  61             break;
  62         case SbxDATE:
  63         case SbxDOUBLE:
  64         case SbxCURRENCY:
  65         case SbxSALINT64:
  66         case SbxSALUINT64:
  67             {
  68             double dVal;
  69             if( p->eType == SbxCURRENCY )
  70                 dVal = ImpCurrencyToDouble( p->nInt64 );
  71             else if( p->eType == SbxSALINT64 )
  72                 dVal = static_cast<float>(p->nInt64);
  73             else if( p->eType == SbxSALUINT64 )
  74                 dVal = static_cast<float>(p->uInt64);
  75             else
  76                 dVal = p->nDouble;
  77
  78             if( dVal > SbxMAXSNG )
  79             {
  80                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW );
  81                 nRes = static_cast< float >(SbxMAXSNG);
  82             }
  83             else if( dVal < SbxMINSNG )
  84             {
  85                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW );
  86                 nRes = static_cast< float >(SbxMINSNG);
  87             }
  88             // tests for underflow - storing value too small for precision of single
  89             else if( dVal > 0 && dVal < SbxMAXSNG2 )
  90             {
  91                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW );
  92                 nRes = static_cast< float >(SbxMAXSNG2);
  93             }
  94             else if( dVal < 0 && dVal > SbxMINSNG2 )
  95             {
  96                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW );
  97                 nRes = static_cast< float >(SbxMINSNG2);
  98             }
  99             else
 100                 nRes = static_cast<float>(dVal);
 101             break;
 102             }
 103         case SbxBYREF | SbxSTRING:
 104         case SbxSTRING:
 105         case SbxLPSTR:
 106             if( !p->pOUString )
 107                 nRes = 0;
 108             else
 109             {
 110                 double d;
 111                 SbxDataType t;
 112                 if( ImpScan( *p->pOUString, d, t, nullptr, false ) != ERRCODE_NONE )
 113                     nRes = 0;
 114                 else if( d > SbxMAXSNG )
 115                 {
 116                     SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW );
 117                     nRes = static_cast< float >(SbxMAXSNG);
 118                 }
 119                 else if( d < SbxMINSNG )
 120                 {
 121                     SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW );
 122                     nRes = static_cast< float >(SbxMINSNG);
 123                 }
 124                 else
 125                     nRes = static_cast<float>(d);
 126             }
 127             break;
 128         case SbxOBJECT:
 129         {
 130             SbxValue* pVal = dynamic_cast<SbxValue*>( p->pObj );
 131             if( pVal )
 132                 nRes = pVal->GetSingle();
 133             else
 134             {
 135                 SbxBase::SetError( ERRCODE_BASIC_NO_OBJECT ); nRes = 0;
 136             }
 137             break;
 138         }
 139
 140         case SbxBYREF | SbxCHAR:
 141             nRes = *p->pChar; break;
 142         case SbxBYREF | SbxBYTE:
 143             nRes = *p->pByte; break;
 144         case SbxBYREF | SbxINTEGER:
 145         case SbxBYREF | SbxBOOL:
 146             nRes = *p->pInteger; break;
 147         case SbxBYREF | SbxLONG:
 148             nRes = static_cast<float>(*p->pLong); break;
 149         case SbxBYREF | SbxULONG:
 150             nRes = static_cast<float>(*p->pULong); break;
 151         case SbxBYREF | SbxERROR:
 152         case SbxBYREF | SbxUSHORT:
 153             nRes = *p->pUShort; break;
 154         case SbxBYREF | SbxSINGLE:
 155             nRes = *p->pSingle; break;
 156         // from here had to be tested
 157         case SbxBYREF | SbxDATE:
 158         case SbxBYREF | SbxDOUBLE:
 159             aTmp.nDouble = *p->pDouble; goto ref;
 160         case SbxBYREF | SbxSALINT64:
 161         case SbxBYREF | SbxCURRENCY:
 162             aTmp.nInt64 = *p->pnInt64; goto ref;
 163         case SbxBYREF | SbxSALUINT64:
 164             aTmp.uInt64 = *p->puInt64; goto ref;
 165         ref:
 166             aTmp.eType = SbxDataType( p->eType & 0x0FFF );
 167             p = &aTmp; goto start;
 168
 169         default:
 170             SbxBase::SetError( ERRCODE_BASIC_CONVERSION ); nRes = 0;
 171     }
 172     return nRes;
 173 }
 174
 175 void ImpPutSingle( SbxValues* p, float n )
 176 {
 177     SbxValues aTmp;
 178 start:
 179     switch( +p->eType )
 180     {
 181         case SbxCHAR:
 182             aTmp.pChar = &p->nChar; goto direct;
 183         case SbxBYTE:
 184             aTmp.pByte = &p->nByte; goto direct;
 185         case SbxINTEGER:
 186         case SbxBOOL:
 187             aTmp.pInteger = &p->nInteger; goto direct;
 188         case SbxLONG:
 189             aTmp.pLong = &p->nLong; goto direct;
 190         case SbxULONG:
 191             aTmp.pULong = &p->nULong; goto direct;
 192         case SbxERROR:
 193         case SbxUSHORT:
 194             aTmp.pUShort = &p->nUShort; goto direct;
 195         case SbxCURRENCY:
 196         case SbxSALINT64:
 197             aTmp.pnInt64 = &p->nInt64; goto direct;
 198         case SbxSALUINT64:
 199             aTmp.puInt64 = &p->uInt64; goto direct;
 200         case SbxDECIMAL:
 201         case SbxBYREF | SbxDECIMAL:
 202             {
 203             SbxDecimal* pDec = ImpCreateDecimal( p );
 204             if( !pDec->setSingle( n ) )
 205                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW );
 206             break;
 207             }
 208         direct:
 209             aTmp.eType = SbxDataType( p->eType | SbxBYREF );
 210             p = &aTmp; goto start;
 211
 212         // from here no tests
 213         case SbxSINGLE:
 214             p->nSingle = n; break;
 215         case SbxDATE:
 216         case SbxDOUBLE:
 217             p->nDouble = n; break;
 218
 219         case SbxBYREF | SbxSTRING:
 220         case SbxSTRING:
 221         case SbxLPSTR:
 222         {
 223             if( !p->pOUString )
 224                 p->pOUString = new OUString;
 225             ImpCvtNum( static_cast<double>(n), 6, *p->pOUString );
 226             break;
 227         }
 228         case SbxOBJECT:
 229         {
 230             SbxValue* pVal = dynamic_cast<SbxValue*>( p->pObj );
 231             if( pVal )
 232                 pVal->PutSingle( n );
 233             else
 234                 SbxBase::SetError( ERRCODE_BASIC_NO_OBJECT );
 235             break;
 236         }
 237         case SbxBYREF | SbxCHAR:
 238             if( !o3tl::convertsToAtMost(o3tl::roundAway(n), SbxMAXCHAR) )
 239             {
 240                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = SbxMAXCHAR;
 241             }
 242             else if( !o3tl::convertsToAtLeast(o3tl::roundAway(n), SbxMINCHAR) )
 243             {
 244                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = SbxMINCHAR;
 245             }
 246             *p->pChar = static_cast<sal_Unicode>(n); break;
 247         case SbxBYREF | SbxBYTE:
 248             if( !o3tl::convertsToAtMost(o3tl::roundAway(n), SbxMAXBYTE) )
 249             {
 250                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = SbxMAXBYTE;
 251             }
 252             else if( n < 0 )
 253             {
 254                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = 0;
 255             }
 256             *p->pByte = static_cast<sal_uInt8>(n); break;
 257         case SbxBYREF | SbxINTEGER:
 258         case SbxBYREF | SbxBOOL:
 259             if( !o3tl::convertsToAtMost(o3tl::roundAway(n), SbxMAXINT) )
 260             {
 261                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = SbxMAXINT;
 262             }
 263             else if( !o3tl::convertsToAtLeast(o3tl::roundAway(n), SbxMININT) )
 264             {
 265                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = SbxMININT;
 266             }
 267             *p->pInteger = static_cast<sal_Int16>(n); break;
 268         case SbxBYREF | SbxERROR:
 269         case SbxBYREF | SbxUSHORT:
 270             if( !o3tl::convertsToAtMost(o3tl::roundAway(n), SbxMAXUINT) )
 271             {
 272                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = SbxMAXUINT;
 273             }
 274             else if( n < 0 )
 275             {
 276                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); n = 0;
 277             }
 278             *p->pUShort = static_cast<sal_uInt16>(n); break;
 279         case SbxBYREF | SbxLONG:
 280         {
 281             sal_Int32 i;
 282             if( !o3tl::convertsToAtMost(o3tl::roundAway(n), SbxMAXLNG) )
 283             {
 284                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); i = SbxMAXLNG;
 285             }
 286             else if( !o3tl::convertsToAtLeast(o3tl::roundAway(n), SbxMINLNG) )
 287             {
 288                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); i = SbxMINLNG;
 289             }
 290             else
 291             {
 292                 i = sal::static_int_cast< sal_Int32 >(n);
 293             }
 294             *p->pLong = i; break;
 295         }
 296         case SbxBYREF | SbxULONG:
 297         {
 298             sal_uInt32 i;
 299             if( !o3tl::convertsToAtMost(o3tl::roundAway(n), SbxMAXULNG) )
 300             {
 301                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); i = SbxMAXULNG;
 302             }
 303             else if( n < 0 )
 304             {
 305                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); i = 0;
 306             }
 307             else
 308             {
 309                 i = sal::static_int_cast< sal_uInt32 >(n);
 310             }
 311             *p->pULong = i; break;
 312         }
 313         case SbxBYREF | SbxSINGLE:
 314             *p->pSingle = n; break;
 315         case SbxBYREF | SbxDATE:
 316         case SbxBYREF | SbxDOUBLE:
 317             *p->pDouble = static_cast<double>(n); break;
 318         case SbxBYREF | SbxSALINT64:
 319             *p->pnInt64 = static_cast<sal_Int64>(n); break;
 320         case SbxBYREF | SbxSALUINT64:
 321             *p->puInt64 = static_cast<sal_uInt64>(n); break;
 322         case SbxBYREF | SbxCURRENCY:
 323             double d;
 324             if( n > SbxMAXCURR )
 325             {
 326                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); d = SbxMAXCURR;
 327             }
 328             else if( n < SbxMINCURR )
 329             {
 330                 SbxBase::SetError( ERRCODE_BASIC_MATH_OVERFLOW ); d = SbxMINCURR;
 331             }
 332             else
 333             {
 334                 d = n;
 335             }
 336             *p->pnInt64 = ImpDoubleToCurrency( d ); break;
 337
 338         default:
 339             SbxBase::SetError( ERRCODE_BASIC_CONVERSION );
 340     }
 341 }
 342
 343 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */