- Original Message -
From: Graeme Geldenhuys graemeg.li...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Friday, October 23, 2009 11:10 PM
Subject: [fpc-pascal] WORD (2 bytes) to String conversion
Hi,
I'm reading in a WORD (2 bytes) from a binary
On Oct 25, 2009, at 3:09 PM, Paul Nicholls wrote:
- Original Message - From: Graeme Geldenhuys graemeg.li...@gmail.com
To: FPC-Pascal users discussions fpc-pascal@lists.freepascal.org
Sent: Friday, October 23, 2009 11:10 PM
Subject: [fpc-pascal] WORD (2 bytes) to String conversion
Graeme Geldenhuys schreef:
On 23/10/2009, Vincent Snijders vsnijd...@vodafonevast.nl wrote:
You can consider declaring the ID in the header record type as array[1..2]
of char.
As Marco suggested... Char size might not always be the same. I did
however change my header to array[0..1] of byte
2009/10/24 Vincent Snijders vsnijd...@vodafonevast.nl:
But then you still cannot do:
if header.id='HS' then
// magic is correct.
That is why I proposed a static array of char.
No, but I can do this... which is sufficient.
var
s: string
begin
s := hdr^.ID;
if S = HS then
...
Graeme Geldenhuys schreef:
2009/10/24 Vincent Snijders vsnijd...@vodafonevast.nl:
But then you still cannot do:
if header.id='HS' then
// magic is correct.
That is why I proposed a static array of char.
No, but I can do this... which is sufficient.
var
s: string
begin
s := hdr^.ID;
As Marco suggested... Char size might not always be the same.
Why that? I hope noone changes the meaning of such long-time types some
day. If a new type is needed, then it should get a new name too.
___
fpc-pascal maillist -
Hi,
I'm reading in a WORD (2 bytes) from a binary file. I can display the
Hex format of that value without a problem, but I would also like to
display the String value of that WORD variable. It's the first 2 bytes
of a file, which contains the magic number of the file.
I would like my program to
On Fri, Oct 23, 2009 at 14:10, Graeme Geldenhuys
graemeg.li...@gmail.com wrote:
Hi,
I'm reading in a WORD (2 bytes) from a binary file. I can display the
Hex format of that value without a problem, but I would also like to
display the String value of that WORD variable. It's the first 2 bytes
2009/10/23 Aleksa Todorovic alexi...@gmail.com:
w: WORD
...
YourString := Chr(Lo(w)) + Chr(Hi(w))
or
YourString := Chr(Hi(w)) + Chr(Lo(w))
Ah, thanks. I was close, I used High() and Low() instead. :-( Dope!
--
Regards,
- Graeme -
___
Graeme Geldenhuys wrote:
Hi,
I'm reading in a WORD (2 bytes) from a binary file. I can display the
Hex format of that value without a problem, but I would also like to
display the String value of that WORD variable. It's the first 2 bytes
of a file, which contains the magic number of the file.
On 23/10/2009, Jeff Wormsley dawor...@comcast.net wrote:
That's dangerous, though, if your magic number's two bytes aren't printable
That should never be a problem for my tool though. The tool I am
writing is specific to the INF help format. The tool dumps the file
structure to a text file. (I
Graeme Geldenhuys wrote:
On 23/10/2009, Jeff Wormsley dawor...@comcast.net wrote:
That's dangerous, though, if your magic number's two bytes aren't printable
That should never be a problem for my tool though. The tool I am
writing is specific to the INF help format.
On 23/10/2009, Jeff Wormsley dawor...@comcast.net wrote:
Oh, I was fairly certain of that. Its just these little routines tend to
end up in libraries of handy code. I tend to be overly cautious with some
of these because of that.
Point taken. :-) This code is purposely rewritten and
I would like my program to output the following:
-
Header Section
header.ID(5348h = HS)
...
-
Wouldn't it be more direct to use
Blockwrite(file,header.ID,sizeof(header.ID));
That would make it robust against changes of ID size and would avoid the
many
On 23/10/2009, Jürgen Hestermann juergen.hesterm...@gmx.de wrote:
Wouldn't it be more direct to use
Blockwrite(file,header.ID,sizeof(header.ID));
I read the complete header structure in one go (155 bytes). I simply
want to output to a text file, a human readable structure of the
complete INF
Graeme Geldenhuys schreef:
On 23/10/2009, Jürgen Hestermann juergen.hesterm...@gmx.de wrote:
Wouldn't it be more direct to use
Blockwrite(file,header.ID,sizeof(header.ID));
I read the complete header structure in one go (155 bytes). I simply
want to output to a text file, a human readable
On 23/10/2009, Vincent Snijders vsnijd...@vodafonevast.nl wrote:
You can consider declaring the ID in the header record type as array[1..2]
of char.
As Marco suggested... Char size might not always be the same. I did
however change my header to array[0..1] of byte instead.
--
Regards,
-
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