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Re: Binary file created with IDL strings [message #57319 is a reply to message #57276]

Wed, 05 December 2007 09:12

Vince Hradil
Messages: 574
Registered: December 1999

Senior Member

On Dec 5, 11:00 am, peajai.all.the....@gmail.com wrote:
> On Dec 5, 11:36 am, Vince Hradil <hrad...@yahoo.com> wrote:
>
>> On Dec 5, 10:32 am, peajai.all.the....@gmail.com wrote:
>
>>> I am trying to read in a IDL created binary file in C++. The file
>>> contains floats, ints, doubles, and strings. I am able to read the
>>> floats and ints (shorts in C++) with no problem, but once I get to the
>>> section of the file containing strings, I cannot seem to read in the
>>> correct number of bytes. I am not concerned with the contents on the
>>> strings, but there is more data in floats after the strings that I
>>> need to be able to read properly. If possible, I could seek forward
>>> however many bytes just to get to the location of the data after the
>>> strings. Does anyone know how many bytes each character in an IDL
>>> string is? There are 22 strings, each 20 characters long. How many
>>> bytes would this be?
>
>> Each character is a byte.
>
> Do I need to account for an extra byte at the end of each string for a
> null terminator?

I should have guessed you were going to ask that 8) I avoided it
because I'm not 100% sure, but I think IDL does NOT write the null
terminator like C. Pretty easy to test...

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[Message index]

		Re: Binary file created with IDL strings By: Vince Hradil on Wed, 05 December 2007 16:51
		Re: Binary file created with IDL strings By: peajai.all.the.way on Wed, 05 December 2007 15:59
		Re: Binary file created with IDL strings By: Vince Hradil on Wed, 05 December 2007 13:46
		Re: Binary file created with IDL strings By: peajai.all.the.way on Wed, 05 December 2007 13:12
		Re: Binary file created with IDL strings By: Vince Hradil on Wed, 05 December 2007 09:12
		Re: Binary file created with IDL strings By: peajai.all.the.way on Wed, 05 December 2007 09:00
		Re: Binary file created with IDL strings By: Vince Hradil on Wed, 05 December 2007 08:36

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