Newsgroups:	comp.os.msdos.djgpp
From:	vnlad AT myna DOT com (Vimal N. Lad / Gautam N. Lad)
Subject:	Sizeof messed up
Date:	Mon, 08 Jun 1998 16:29:08 GMT
NNTP-Posting-Host:	dh-48.tor0421.myna.com
Message-ID:	<357c0fc1.0@news.myna.com>
Lines:	24
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi,
I have DJGPP v2.7.2 (I think) and Allegro v3.0.  I am trying to make
my own TGA reader (I know Allegro already has it, but this is for
a Windows program and I am using DJGPP & Allegro to test
and display the format). 

For some odd reason, the sizeof function returns the wrong size.
I have a structure, which is exactly 18 bytes long.  When I call
sizeof(TGAHEAD); (I am trying to read the header of a .TGA file),
it says the header is 20 bytes long.  I have the correct structure
for the TGA format and in another compiler, Turbo C++ v1.0, it
returns the correct size wich is 18 bytes.

What's going on?  I can't seem to figure it out!  Maybe it;s my code?

The structure only uses two types: WORD (unsigned short) which is 2 bytes and 
BYTE (unsigned byte) which is one byte.

Help!
Bye!

Gautam N. Lad / Vimal N. Lad
- E-mail: vnlad AT myna DOT com
- Website: http://www.geocities.com/SiliconValley/Heights/1107

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