Files
harbour-core/include/hbmather.h
Viktor Szakats 5a2a287752 2017-09-08 16:00 UTC Viktor Szakats (vszakats users.noreply.github.com)
* *
    * partial sync with the 3.4 fork codebase. These are the things
      synces for the most part:
      - copyright headers
      - grammar/typos in comments and some readmes
      - comment/whitespace/decorations
      - variable scoping in C files
      - DO CASE/SWITCH and some other alternate syntax usage
      - minimal amount of human readable text in strings
      - minor code updates
      - HB_TRACE() void * casts for pointers and few other changes to
        avoid C compiler warnings
      - various other, minor code cleanups
      - only Harbour/C code/headers were touched in src, utils, contrib,
        include. No 3rd party code, no make files, and with just a few
        exceptions, no 'tests' code was touched.
      - certain components were not touched were 3.4 diverged too much
        already, like f.e. hbmk2, hbssl, hbcurl, hbexpat
      - the goal was that no actual program logic should be altered by
        these changes. Except some possible minor exceptions, any such
        change is probably a bug in this patch.
      It's a massive patch, if you find anything broken after it, please
      open an Issue with the details. Build test was done on macOS.
      The goal is make it easier to see what actual code/logic was changed
      in 3.4 compared to 3.2 and to make patches easier to apply in both
      ways.
2017-09-08 16:25:13 +00:00

124 lines
4.4 KiB
C

/*
* Harbour math functions and API
*
* Copyright 2001 IntTec GmbH, Neunlindenstr 32, 79106 Freiburg, Germany
* Author: Martin Vogel <vogel@inttec.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file LICENSE.txt. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA (or visit https://www.gnu.org/licenses/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#ifndef HB_MATHER_H_
#define HB_MATHER_H_
#include "hbmath.h"
HB_EXTERN_BEGIN
#if defined( __WATCOMC__ )
#define HB_MATH_HANDLER
#if __WATCOMC__ > 1000 /* && defined( __cplusplus ) */
#define exception _exception
#endif
#elif defined( __BORLANDC__ )
#if ( __BORLANDC__ == 0x530 ) && defined( __cplusplus )
/* NOTE: There seem to be a bug in Borland C++ 5.3 C++ mode which prevents
the redefinition of matherr, because nor "_exception" neither
"exception" will work. [vszakats] */
#else
#define HB_MATH_HANDLER
#define matherr _matherr
/* NOTE: This is needed for Borland C++ 5.5 in C++/STDC mode. [vszakats] */
#if ( __BORLANDC__ >= 0x550 )
#define exception _exception
#endif
#endif
#elif defined( __MINGW32CE__ )
#define HB_MATH_HANDLER
#define matherr _matherr
#define exception _exception
/* it seems that MinGW has some problem with MATH HANDLER
use HB_MATH_ERRNO instead */
#elif defined( __MINGW32__ ) && 0
#define HB_MATH_HANDLER
#define matherr _matherr
#define exception _exception
#elif defined( __DJGPP__ )
#if ! defined( __cplusplus )
#define HB_MATH_HANDLER
#endif
#endif
#if ! defined( HB_MATH_HANDLER ) && \
( defined( __GNUC__ ) || defined( HB_OS_UNIX ) )
#define HB_MATH_ERRNO
#endif
typedef struct _HB_MATH_EXCEPTION
{
int type;
const char * funcname;
const char * error;
double arg1;
double arg2;
double retval;
int retvalwidth;
int retvaldec;
int handled;
} HB_MATH_EXCEPTION;
typedef int ( * HB_MATH_HANDLERPROC )( HB_MATH_EXCEPTION * err );
extern HB_EXPORT void hb_mathResetError( HB_MATH_EXCEPTION * phb_exc );
extern HB_EXPORT HB_BOOL hb_mathGetError( HB_MATH_EXCEPTION * phb_exc, const char * szFunc, double arg1, double arg2, double dResult );
extern HB_EXPORT int hb_mathSetErrMode( int imode );
extern HB_EXPORT int hb_mathGetErrMode( void );
extern HB_EXPORT HB_MATH_HANDLERPROC hb_mathSetHandler( HB_MATH_HANDLERPROC handlerproc );
extern HB_EXPORT HB_MATH_HANDLERPROC hb_mathGetHandler( void );
/* include defines from hbmath.ch */
#include "hbmath.ch"
HB_EXTERN_END
#endif /* HB_MATHER_H_ */