Re: Goto, etc.
------=_NextPart_000_00DC_01BF300C.87E2ED00
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
A possible simpler solution to exiting nested blocks with no goto's or =
labels:
exit could be modified to take an (optional) integer argument (1 assumed =
if omitted). The agument would specify the number of nesting levels to =
exit:
--Psuedo-code--
for i=3D1 to 10 do
for j=3D5 to 25 by 5 do
while k<75 do
if error1 then exit end if -- or exit 1
if error2 then exit 2 end if
if error3 then exit 3 end if
end while
end for
end for
when error1 occcurs, only the inner block is exited, when error2 occurs, =
the inner block and the enclosing for block is exited, if error3, then =
all blocks are exited.
This is just an off the top of my head idea--what do you think about it?
--Mike Nelson
------=_NextPart_000_00DC_01BF300C.87E2ED00
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>
<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3110.7"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>A possible simpler solution to =
exiting nested=20
blocks with no goto's or labels:</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>exit could be modified to take an =
(optional)=20
integer argument (1 assumed if omitted). The agument would specify =
the=20
number of nesting levels to exit:</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>--Psuedo-code--</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
<DIV><FONT color=3D#000000 size=3D2>for i=3D1 to 10 do</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2> for j=3D5 to 25 =
by 5=20
do</FONT></DIV>
<DIV><FONT color=3D#000000 =
size=3D2> while=20
k<75 do</FONT></DIV>
<DIV><FONT color=3D#000000=20
p; if=20
error1 then exit end if -- or exit 1</FONT></DIV>
<DIV><FONT color=3D#000000=20
p; if=20
error2 then exit 2 end if</FONT></DIV>
<DIV><FONT color=3D#000000=20
p; if=20
error3 then exit 3 end if</FONT></DIV>
<DIV><FONT color=3D#000000 =
size=3D2> end=20
while</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2> end =
for</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT><FONT size=3D2>end =
for</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>when error1 occcurs, only the inner block is exited, =
when=20
error2 occurs, the inner block and the enclosing for block is exited, if =
error3,=20
then all blocks are exited.</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>This is just an off the top of my head idea--what do =
you think=20
about it?</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>--Mike Nelson</FONT></DIV>
------=_NextPart_000_00DC_01BF300C.87E2ED00--
|
Not Categorized, Please Help
|
|
