132 lines
4.6 KiB
C
132 lines
4.6 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* Harbour math functions and API
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*
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* Copyright 2001 IntTec GmbH, Neunlindenstr 32, 79106 Freiburg, Germany
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* Author: Martin Vogel <vogel@inttec.de>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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* As a special exception, the Harbour Project gives permission for
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* additional uses of the text contained in its release of Harbour.
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*
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* The exception is that, if you link the Harbour libraries with other
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* files to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the Harbour library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the Harbour
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* Project under the name Harbour. If you copy code from other
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* Harbour Project or Free Software Foundation releases into a copy of
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* Harbour, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for Harbour, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice.
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*
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*/
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#ifndef HB_MATH_H_
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#define HB_MATH_H_
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#include "hbapi.h"
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#include <math.h>
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#if defined(HB_EXTERN_C)
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extern "C" {
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#endif
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#if defined(__WATCOMC__)
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#define HB_MATH_HANDLER
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#define exception _exception
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#elif defined(__BORLANDC__)
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#if (__BORLANDC__ == 1328) && defined(__cplusplus)
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/* NOTE: There seem to be a bug in Borland C++ 5.3 C++ mode which prevents
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the redefinition of matherr, because nor "_exception" neither
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"exception" will work. [vszakats] */
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#else
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#define HB_MATH_HANDLER
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#define matherr _matherr
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/* NOTE: This is needed for Borland C++ 5.5 in C++/STDC mode. [vszakats] */
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#if (__BORLANDC__ >= 1360)
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#define exception _exception
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#endif
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#endif
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#elif defined(__MINGW32__)
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#define HB_MATH_HANDLER
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#define matherr _matherr
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#define exception _exception
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#endif
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typedef struct _HB_MATH_EXCEPTION
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{
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int type;
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char * name;
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double arg1;
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double arg2;
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double retval;
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} HB_MATH_EXCEPTION;
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typedef int ( * HB_MATH_HANDLERPROC )( HB_MATH_EXCEPTION * err );
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typedef struct HB_MATH_HANDLERCHAINELEMENT_
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{
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HB_MATH_HANDLERPROC handlerproc;
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int status;
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struct HB_MATH_HANDLERCHAINELEMENT_ * pnext;
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} HB_MATH_HANDLERCHAINELEMENT, * PHB_MATH_HANDLERCHAINELEMENT;
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typedef PHB_MATH_HANDLERCHAINELEMENT HB_MATH_HANDLERHANDLE;
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extern int hb_mathGetError( void );
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extern void hb_mathResetError( void );
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extern int hb_mathIsHandler( void );
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extern HB_MATH_HANDLERHANDLE hb_mathInstallHandler( HB_MATH_HANDLERPROC handlerproc );
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extern int hb_mathDeinstallHandler( HB_MATH_HANDLERHANDLE handle );
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extern int hb_mathSetHandlerStatus( HB_MATH_HANDLERHANDLE handle, int status );
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extern int hb_mathGetHandlerStatus( HB_MATH_HANDLERHANDLE handle );
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#define HB_MATH_HANDLER_STATUS_NOTFOUND ( ( int ) -1 )
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#define HB_MATH_HANDLER_STATUS_INACTIVE ( ( int ) 0 )
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#define HB_MATH_HANDLER_STATUS_ACTIVE ( ( int ) 1 )
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#define HB_MATH_ERR_UNKNOWN ( ( int ) 0 )
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#define HB_MATH_ERR_DOMAIN ( ( int ) 1 )
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#define HB_MATH_ERR_SING ( ( int ) 2 )
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#define HB_MATH_ERR_OVERFLOW ( ( int ) 3 )
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#define HB_MATH_ERR_UNDERFLOW ( ( int ) 4 )
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#define HB_MATH_ERR_TLOSS ( ( int ) 5 )
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#define HB_MATH_ERR_PLOSS ( ( int ) 6 )
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#if defined(HB_EXTERN_C)
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}
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#endif
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#endif /* HB_MATH_H_ */
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