Mail Archives: djgpp/1998/12/19/15:00:43
| Message-ID: | <002301be2b8a$37ab3180$08034ac3@oemcomputer>
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| From: | "=?iso-8859-1?Q?Veli-Pekka_Kilpel=E4inen?=" <vpk2 AT sci DOT fi>
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| To: | <djgpp AT delorie DOT com>
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| Subject: | Variable malfunction?
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| Date: | Sat, 19 Dec 1998 22:00:18 +0200
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| MIME-Version: | 1.0
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| X-Priority: | 3
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| X-MSMail-Priority: | Normal
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| X-Mailer: | Microsoft Outlook Express 4.72.3110.5
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| Reply-To: | djgpp AT delorie DOT com
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Tämä on moniosainen MIME-muotoinen viesti.
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What can be the reason when my variable is not changed in the following =
code:
=20
...
const double pi2 =3D 6.2831853072;
...
main(){}
...
void set_trigs(void)
{double gr;
for (int index =3D 0; index < 8192; index++)
{gr =3D index / 8192 * pi2; // gr is always zero!
*tr++ =3D sin(gr);
*tr++ =3D cos(gr);};}
...
=20
I see this in both Rhide's debugger and on screen. None of the Rhide's =
optimization flags are set, so no optimization should be used(everything =
else is also on default). I run Rhide at Win98 DOS mode(not prompt) and =
everything else seems working.
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<DIV>
<DIV><FONT color=3D#000000 size=3D2>What can be the reason when my =
variable is not=20
changed in the following code:</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>...<BR>const double pi2 =3D=20
6.2831853072;<BR>...<BR>main(){}<BR>...<BR>void =
set_trigs(void)<BR>{double=20
gr;<BR>for (int index =3D 0; index < 8192; index++)<BR> {gr =3D =
index / 8192=20
* pi2; // gr is always=20
zero!<BR> *tr++ =3D sin(gr);<BR> *tr++ =3D =
cos(gr);};}<BR>...</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>I see this in both Rhide's debugger =
and on=20
screen. None of the Rhide's optimization flags are set, so no =
optimization=20
should be used(everything else is also on default). I run Rhide at Win98 =
DOS=20
mode(not prompt) and everything else seems=20
working.</FONT></DIV></DIV></BODY></HTML>
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