I wonder if anyone here knew Pascal before C++, perhaps you could help me
out. I'm converting some pascal code into C++, and I can't seem to
understand what AType(Ptr)[index] is trying to accomplish. Any helps would
be appreciated. Thanks.
type
AType = array[0..$FF] of byte;
var Ptr : Pointer;
Move(AType(Ptr)[index], dest_word, 2);
11  2211 
SGi wrote: I wonder if anyone here knew Pascal before C++, perhaps you could help me
out. I'm converting some pascal code into C++, and I can't seem to
understand what AType(Ptr)[index] is trying to accomplish. Any helps would
be appreciated. Thanks.
type
AType = array[0..$FF] of byte;
var Ptr : Pointer;
Move(AType(Ptr)[index], dest_word, 2);
This is a Pascal (or perhaps Delphi) question and should be asked in a
more appropriate forum. See this FAQ for what is on-topic here and for
some possible forums you can post in: http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Cheers! --M
mlimber wrote: SGi wrote: I wonder if anyone here knew Pascal before C++, perhaps you could
help me out. I'm converting some pascal code into C++, and I can't
seem to understand what AType(Ptr)[index] is trying to accomplish.
Any helps would be appreciated. Thanks.
type
AType = array[0..$FF] of byte;
var Ptr : Pointer;
Move(AType(Ptr)[index], dest_word, 2);
This is a Pascal (or perhaps Delphi) question and should be asked in a
more appropriate forum. See this FAQ for what is on-topic here and for
some possible forums you can post in:
http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Cheers! --M
Don't just the gun, M. In the expression
Move(AType(Ptr)[index], ...
The part
AType(Ptr)[index]
is an explicit type conversion from 'Ptr' to 'AType' ("functional notation")
and then applying of the indexing operator to it.
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask
> AType(Ptr)[index]
is an explicit type conversion from 'Ptr' to 'AType' ("functional
notation")
and then applying of the indexing operator to it.
Thanks a lot Vic.
Victor Bazarov wrote: mlimber wrote: SGi wrote: I wonder if anyone here knew Pascal before C++, perhaps you could
help me out. I'm converting some pascal code into C++, and I can't
seem to understand what AType(Ptr)[index] is trying to accomplish.
Any helps would be appreciated. Thanks.
type
AType = array[0..$FF] of byte;
var Ptr : Pointer;
Move(AType(Ptr)[index], dest_word, 2);
This is a Pascal (or perhaps Delphi) question and should be asked in a
more appropriate forum. See this FAQ for what is on-topic here and for
some possible forums you can post in:
http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Cheers! --M
Don't just the gun, M. In the expression [...]
But it's a *Pascal* expression!
Cheers! --M
Victor Bazarov wrote: mlimber wrote: SGi wrote: I wonder if anyone here knew Pascal before C++, perhaps you could
help me out. I'm converting some pascal code into C++, and I can't
seem to understand what AType(Ptr)[index] is trying to accomplish.
Any helps would be appreciated. Thanks.
type
AType = array[0..$FF] of byte;
var Ptr : Pointer;
Move(AType(Ptr)[index], dest_word, 2);
This is a Pascal (or perhaps Delphi) question and should be asked in a
more appropriate forum. See this FAQ for what is on-topic here and for
some possible forums you can post in:
http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Cheers! --M
Don't just the gun, M. In the expression
Move(AType(Ptr)[index], ...
The part
AType(Ptr)[index]
is an explicit type conversion from 'Ptr' to 'AType' ("functional
notation") and then applying of the indexing operator to it.
Maybe that's the case. I don't know Pascal. Anyway, since we're not in a
Pascal group, this is off-topic.
mlimber wrote: Victor Bazarov wrote: mlimber wrote: SGi wrote:
I wonder if anyone here knew Pascal before C++, perhaps you could
help me out. I'm converting some pascal code into C++, and I can't
seem to understand what AType(Ptr)[index] is trying to accomplish.
Any helps would be appreciated. Thanks.
type
AType = array[0..$FF] of byte;
var Ptr : Pointer;
Move(AType(Ptr)[index], dest_word, 2);
This is a Pascal (or perhaps Delphi) question and should be asked
in a more appropriate forum. See this FAQ for what is on-topic here
and for some possible forums you can post in:
http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Cheers! --M
Don't just the gun, M. In the expression [...]
But it's a *Pascal* expression!
Why do you think that? For all I know it's a C++ expression written
after four (three) lines of something that isn't C++. *If* we assume
that it's a C++ expression, my explanation holds, doesn't it? IOW,
I gave the interpretation of that expression _as_if_ it were a C++ one.
You, however, immediately dismissed it as non-C++ one. What's more
surprising, you managed to conclude that it *was* a Pascal expression
(and not a C++ expression). How the hell did you know? The expression
Move(AType(Ptr)[index], dest_word, 2);
looks like C++ to me. What led you to believe it wasn't?
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask
Rolf Magnus wrote: Victor Bazarov wrote:
mlimber wrote: SGi wrote:
I wonder if anyone here knew Pascal before C++, perhaps you could
help me out. I'm converting some pascal code into C++, and I can't
seem to understand what AType(Ptr)[index] is trying to accomplish.
Any helps would be appreciated. Thanks.
type
AType = array[0..$FF] of byte;
var Ptr : Pointer;
Move(AType(Ptr)[index], dest_word, 2);
This is a Pascal (or perhaps Delphi) question and should be asked
in a more appropriate forum. See this FAQ for what is on-topic here
and for some possible forums you can post in:
http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Cheers! --M
Don't just the gun, M. In the expression
Move(AType(Ptr)[index], ...
The part
AType(Ptr)[index]
is an explicit type conversion from 'Ptr' to 'AType' ("functional
notation") and then applying of the indexing operator to it.
Maybe that's the case. I don't know Pascal. Anyway, since we're not
in a Pascal group, this is off-topic.
Another one! What makes you think that "Move(AType(Ptr )[index], .."
is not a C++ expression. For all I know about C++, that expression
surely looks like C++. I just explained what it is in C++. Did you
think otherwise? What gave you that idea?
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask
Victor Bazarov wrote: mlimber wrote: But it's a *Pascal* expression!
Why do you think that?
Because the OP said, "I'm converting some pascal code into C++, and I
can't seem to understand what AType(Ptr)[index] is trying to
accomplish," and then gave the Pascal definitions for AType and Ptr. It
may have looked like a duck, but in reality it was a goose!
Cheers! --M
Victor Bazarov wrote: mlimber wrote: Victor Bazarov wrote: mlimber wrote:
SGi wrote:
> I wonder if anyone here knew Pascal before C++, perhaps you could
> help me out. I'm converting some pascal code into C++, and I can't
> seem to understand what AType(Ptr)[index] is trying to accomplish.
> Any helps would be appreciated. Thanks.
>
> type
> AType = array[0..$FF] of byte;
>
> var Ptr : Pointer;
>
> Move(AType(Ptr)[index], dest_word, 2);
This is a Pascal (or perhaps Delphi) question and should be asked
in a more appropriate forum. See this FAQ for what is on-topic here
and for some possible forums you can post in:
http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Cheers! --M
Don't just the gun, M. In the expression [...]
But it's a *Pascal* expression!
Why do you think that? For all I know it's a C++ expression written
after four (three) lines of something that isn't C++. *If* we assume
that it's a C++ expression, my explanation holds, doesn't it? IOW,
I gave the interpretation of that expression _as_if_ it were a C++ one.
You, however, immediately dismissed it as non-C++ one. What's more
surprising, you managed to conclude that it *was* a Pascal expression
(and not a C++ expression). How the hell did you know? The expression
Move(AType(Ptr)[index], dest_word, 2);
looks like C++ to me. What led you to believe it wasn't?
Hm, I wonder what it is that makes believe that "Hand" in
"Hand me that book, please."
is English and not German. If someone would ask for the meaning of "Hand",
and gives that example sentence, would it be appropriate to say that "Hand"
is a noun in German that refers to those five-fingered things at the ends
of our arms?
Best
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