e4ddd5f914
* contrib/hbxbp/hbxbp.hbc
+ Added gtgui as default GT on win/wce systems.
* include/extend.api
* include/hbsetup.ch
* include/hbapi.h
+ Added new HB_LEGACY_LEVEL3 macro to wrap legacy
constructs to be deprecated in the next major release.
Currently legacy IS*() parameter type checking macros
are marked as such, ones present in CA-Cl*pper retained
in extend.api even when this macro off.
; NOTE: It's recommended for 3rd party developers to
start using new HB_IS*() macros. They work
the same as Clipper compatible IS*() macros,
but got a HB_ prefix: ISNUM( 1 ) -> HB_ISNUM( 1 )
(not to be confused with HB_IS_*() macros which
accept a PHB_ITEM)
Here's a little batch which helps this process:
---
gsar -o -s:x20ISNUM( -r:x20HB_ISNUM( *.c *.cpp
gsar -o -s:x20ISCHAR( -r:x20HB_ISCHAR( *.c *.cpp
gsar -o -s:x20ISLOG( -r:x20HB_ISLOG( *.c *.cpp
gsar -o -s:x20ISARRAY( -r:x20HB_ISARRAY( *.c *.cpp
gsar -o -s:x20ISBYREF( -r:x20HB_ISBYREF( *.c *.cpp
gsar -o -s:x20ISDATE( -r:x20HB_ISDATE( *.c *.cpp
gsar -o -s:x20ISDATETIME( -r:x20HB_ISDATETIME( *.c *.cpp
gsar -o -s:x20ISNIL( -r:x20HB_ISNIL( *.c *.cpp
gsar -o -s:x20ISTIMESTAMP( -r:x20HB_ISTIMESTAMP( *.c *.cpp
gsar -o -s:x20ISBLOCK( -r:x20HB_ISBLOCK( *.c *.cpp
gsar -o -s:x20ISPOINTER( -r:x20HB_ISPOINTER( *.c *.cpp
gsar -o -s:x20ISSYMBOL( -r:x20HB_ISSYMBOL( *.c *.cpp
gsar -o -s:x20ISOBJECT( -r:x20HB_ISOBJECT( *.c *.cpp
gsar -o -s:x20ISHASH( -r:x20HB_ISHASH( *.c *.cpp
gsar -o -s!ISNUM( -r!HB_ISNUM( *.c *.cpp
gsar -o -s!ISCHAR( -r!HB_ISCHAR( *.c *.cpp
gsar -o -s!ISLOG( -r!HB_ISLOG( *.c *.cpp
gsar -o -s!ISARRAY( -r!HB_ISARRAY( *.c *.cpp
gsar -o -s!ISBYREF( -r!HB_ISBYREF( *.c *.cpp
gsar -o -s!ISDATE( -r!HB_ISDATE( *.c *.cpp
gsar -o -s!ISDATETIME( -r!HB_ISDATETIME( *.c *.cpp
gsar -o -s!ISNIL( -r!HB_ISNIL( *.c *.cpp
gsar -o -s!ISTIMESTAMP( -r!HB_ISTIMESTAMP( *.c *.cpp
gsar -o -s!ISBLOCK( -r!HB_ISBLOCK( *.c *.cpp
gsar -o -s!ISPOINTER( -r!HB_ISPOINTER( *.c *.cpp
gsar -o -s!ISSYMBOL( -r!HB_ISSYMBOL( *.c *.cpp
gsar -o -s!ISOBJECT( -r!HB_ISOBJECT( *.c *.cpp
gsar -o -s!ISHASH( -r!HB_ISHASH( *.c *.cpp
---
* source/rtl/hbinet.c
* Formatting.
% Minor optimizations.
* source/debug/dbgentry.c
* source/rdd/dbcmd.c
* source/rdd/dbcmd53.c
* source/rdd/dbcmdx.c
* source/rdd/dbdetach.c
* source/rdd/dbsql.c
* source/rdd/hbsix/sxfname.c
* source/rdd/hbsix/sxord.c
* source/rdd/hbsix/sxtable.c
* source/rdd/usrrdd/usrrdd.c
* source/rtl/at.c
* source/rtl/box.c
* source/rtl/cdpapi.c
* source/rtl/chrasc.c
* source/rtl/colorind.c
* source/rtl/console.c
* source/rtl/copyfile.c
* source/rtl/dateshb.c
* source/rtl/dirdrive.c
* source/rtl/diskspac.c
* source/rtl/disksphb.c
* source/rtl/errapi.c
* source/rtl/filesys.c
* source/rtl/fscopy.c
* source/rtl/fssize.c
* source/rtl/fstemp.c
* source/rtl/gete.c
* source/rtl/gtfunc.c
* source/rtl/gx.c
* source/rtl/hbbit.c
* source/rtl/hbgtcore.c
* source/rtl/hbhex.c
* source/rtl/hbi18n1.c
* source/rtl/hbinet.c
* source/rtl/hbprocfn.c
* source/rtl/hbrandom.c
* source/rtl/hbregex.c
* source/rtl/hbstrsh.c
* source/rtl/hbtoken.c
* source/rtl/hbzlib.c
* source/rtl/hbzlibgz.c
* source/rtl/inkey.c
* source/rtl/itemseri.c
* source/rtl/left.c
* source/rtl/math.c
* source/rtl/maxrow.c
* source/rtl/mlcfunc.c
* source/rtl/mouse53.c
* source/rtl/mousex.c
* source/rtl/mtran.c
* source/rtl/natmsg.c
* source/rtl/padc.c
* source/rtl/padl.c
* source/rtl/padr.c
* source/rtl/philes.c
* source/rtl/philes53.c
* source/rtl/rat.c
* source/rtl/replic.c
* source/rtl/right.c
* source/rtl/round.c
* source/rtl/run.c
* source/rtl/saverest.c
* source/rtl/scroll.c
* source/rtl/setcolor.c
* source/rtl/setcurs.c
* source/rtl/setpos.c
* source/rtl/shadow.c
* source/rtl/strc.c
* source/rtl/strmatch.c
* source/rtl/strpeek.c
* source/rtl/strtoexp.c
* source/rtl/strtran.c
* source/rtl/stuff.c
* source/rtl/substr.c
* source/rtl/tone.c
* source/rtl/trace.c
* source/rtl/transfrm.c
* source/rtl/valtype.c
* source/rtl/word.c
* source/vm/arrayshb.c
* source/vm/asort.c
* source/vm/classes.c
* source/vm/cmdarg.c
* source/vm/eval.c
* source/vm/hashfunc.c
* source/vm/hvm.c
* source/vm/memvars.c
* source/vm/proc.c
* source/vm/thread.c
* IS*() -> HB_IS*() macro rename.
(pass 1 - sf.net SVN works badly today, so I've split
the commit to raise the chances of a successfully
finished one)
155 lines
4.4 KiB
C
155 lines
4.4 KiB
C
/*
|
|
* $Id$
|
|
*/
|
|
|
|
/*
|
|
* xHarbour Project source code:
|
|
* Random number generator routine
|
|
*
|
|
* Copyright 2003 Giancarlo Niccolai <gian@niccolai.ws>
|
|
* www - http://www.harbour-project.org
|
|
*
|
|
* 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 software; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
|
|
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#include "hbmath.h"
|
|
#include "hbdate.h"
|
|
|
|
#include <stdlib.h>
|
|
|
|
#if !defined( HB_OS_WIN )
|
|
#include <float.h>
|
|
#endif
|
|
|
|
/* Globally available data, no need to MT it */
|
|
static volatile int s_fInit = 0;
|
|
|
|
/*
|
|
* HB_RANDOM
|
|
*
|
|
* HB_RANDOM() --> returns a real value n so that 0 <= n < 1
|
|
* HB_RANDOM( x ) --> returns a real number n so that 0 <= n < x
|
|
* HB_RANDOM( x, y) --> Returns a real number n so that x <= n < y
|
|
*/
|
|
HB_FUNC( HB_RANDOM )
|
|
{
|
|
double dRnd = hb_random_num();
|
|
|
|
if( ! HB_ISNUM( 1 ) )
|
|
hb_retnd( dRnd );
|
|
else if( ! HB_ISNUM( 2 ) )
|
|
hb_retnd( dRnd * hb_parnd( 1 ) );
|
|
else
|
|
{
|
|
double dX = hb_parnd( 2 );
|
|
double dY = hb_parnd( 1 );
|
|
if( dX > dY )
|
|
{
|
|
double dZ = dY;
|
|
dY = dX;
|
|
dX = dZ;
|
|
}
|
|
hb_retnd( dRnd * ( dY - dX ) + dX );
|
|
}
|
|
}
|
|
|
|
/*
|
|
* HB_RANDOMINT
|
|
*
|
|
* HB_RANDOMINT() --> returns 0 or 1, evenly distributed
|
|
* HB_RANDOMINT( N ) --> returns an integer between 1 and N (inclusive)
|
|
* HB_RANDOMINT( x, y) --> Returns a real number between x and y (inclusive)
|
|
* The integer returned is of the longest type available
|
|
*/
|
|
HB_FUNC( HB_RANDOMINT )
|
|
{
|
|
double dRnd = hb_random_num();
|
|
|
|
if( ! HB_ISNUM( 1 ) )
|
|
hb_retni( dRnd >= 0.5 ? 0 : 1 );
|
|
else if( ! HB_ISNUM( 2 ) )
|
|
hb_retnint( ( HB_LONG ) ( 1 + ( dRnd * hb_parnint( 1 ) ) ) );
|
|
else
|
|
{
|
|
HB_LONG lX = hb_parnint( 1 );
|
|
HB_LONG lY = hb_parnint( 2 );
|
|
if( lX > lY )
|
|
{
|
|
HB_LONG lZ = lY;
|
|
lY = lX;
|
|
lX = lZ;
|
|
}
|
|
hb_retnint( ( HB_LONG ) ( lX + ( dRnd * ( lY - lX + 1 ) ) ) );
|
|
}
|
|
}
|
|
|
|
HB_FUNC( HB_RANDOMSEED )
|
|
{
|
|
srand( HB_ISNUM( 1 ) ? ( unsigned ) hb_parni( 1 ) : ( unsigned ) hb_dateMilliSeconds() );
|
|
s_fInit = TRUE;
|
|
}
|
|
|
|
/* Returns a double value between 0 and 1 */
|
|
double hb_random_num()
|
|
{
|
|
double d1, d2;
|
|
|
|
if( !s_fInit )
|
|
{
|
|
srand( ( unsigned ) hb_dateMilliSeconds() );
|
|
s_fInit = TRUE;
|
|
}
|
|
|
|
d1 = ( double ) rand();
|
|
d2 = ( double ) RAND_MAX;
|
|
#if defined( HB_OS_WIN )
|
|
/* It seems that on Windows platform there some weirdness about EPSILON value so
|
|
that a float division using an epsilon smaller than 1e-10 may be rounded.
|
|
Must dig if it's a borland lib bug or a windows problem.
|
|
*/
|
|
d2 += 0.001;
|
|
#else
|
|
d2 += DBL_EPSILON;
|
|
#endif
|
|
|
|
return d1 / d2;
|
|
}
|