RE: More on Command Line and Run Arugments

[Peter Wainwright]

On Mon, 2008-06-23 at 11:38 -0700, Wells, John - FS wrote:
> Thank you Peter for you response to my query.  Because of it I reread
> what I wrote and having done that I can see why you answered my query
> the way you did.  Please allow me to summarize as I still do not have
> an answer.  I confusingly wrote, "...when I run a program ddd knows
> the locations of  objects and source.  I know about the preferences
> settings and setting the working directory.  My program open a series
> of files that are located in different places on my system." 
> 
> That was about as clear as mud.  Sorry.  I am not having any problem
> with locating or using the objects or source code files, but I can see
> why you thought that.  Nor am I confusing preference settings with
> setting the workind directory.   I am having a problem with my program
> finding and opening data files.  These files are a mix of
> ascii, proprietary format, and an esoteric data format common to
> large, scale, high resolution imagery.  I am constructing path names
> based partly on command line parameters and values stored in textual
> configuration files.  The files are located in a variety of places on
> our system, but I am starting ddd in the main development directory.
> The resulting constructed pathnames are fully qualified from root.
> 
> What I find is, even if I have started ddd in this main directory and
> have set the working directory (which I always do), my program cannot
> find and open the configuration files that are in the working
> directory to make the pathnames so it can locate the ancillary files
> which are also in the same working directory.  So I hard code the
> pathnames and then it can't find the ancillary files with those
> hardcoded pathnames.  But if I put the ancillary, configuration, and
> data files in my home directory (please note this is not my working
> directory), I put them in my home directory, and set the paths
> appropriately, they are found. 

Can you try running under gdb itself, from the command line?  That might
help narrow things down.  Within gdb, just use "cd" to change directory
and "run arg1 arg2..." to run the program with specified arguments.

I don't believe that DDD does anything weird that GDB does not, but I am
willing to be proved wrong...

Peter

> 
> John
> All will be well.  And all shall be well.  All manner of thing shall
> be well. -- Lady Julian of Norwich
> 
> 
> 
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