Re: strcat not found--MinGW

[Daryl Lee]

On 5/2/2011 9:57 AM, Ben Abbott wrote:
> On May 2, 2011, at 11:35 AM, Daryl Lee wrote:
>
> > On 4/30/2011 4:49 PM, wahaj87 wrote:
> > > Hi Daryl Lee
> > >
> > > Your program is very nice. I am learning from it. Here is simple solution
> > > for your problem.
> > >
> > > 1 - I used this command to build the stand alone executable on vista and xp
> > > machines.
> > >
> > > mkoctfile -Lc:\Octave\lib -LC:\octave\include\octave-3.2.4\octave
> > > --link-stand-alone test2.cpp -o test2
> > >
> > > above command is little different from yours, I think some path is not seen
> > > by octave compiler on my computer for lapack library, so I manually given
> > > the library path.
> > >
> > > Now I opened a command prompt, and cd to the directory where i have
> > > test2.exe, and run it. The same error you mention pop up. You know why ?
> > > This is also a path problem. So to make it right quickly , I copied the
> > > strcat.m from directroy "C:\Octave\share\octave\3.2.4\m\strings" to
> > > directory where test2.exe exists. Run it again. Again two errors pop up ,
> > > demanding max and find undefined. So I again copied max.oct and find.oct
> > > from directory "C:\Octave\libexec\octave\3.2.4\oct\i686-pc-mingw32", to
> > > directory where test2.exe exists. Now I run the test2.exe ! and wow it says
> > > in output :
> > >
> > > Good morning,Hero
> > >
> > > tHAtS IT.--
> >
> > This is very helpful.  But I'm not likely to go scouring the Octave 
> > installation looking for files to copy every time I write a program.  What I 
> > did was modify my program to do this:
> >
> > function [resultString] = example2(inString)
> >     resultString = path;
> > end
> >
> > When I run my stand-alone program under Linux, I get the full Octave path, identical to 
> > what I get when I run it from the Octave console.  When I run it under MinGW/MSYS, I get 
> > only ".".  So now my question is, how do I get Octave to know the full search 
> > path under MinGW/MSYS, as it does under Linux?
> >
> > --
> > Daryl Lee
>
> I haven't seen this problem reported by anyone else. What happens when you run 
> the following function?
>
> function listing = dir_listing
>    listing = dir ();
> end

When I call dir_listing from the Octave prompt, I get:
octave-3.2.4.exe:9> dir = dir_listing
dir =
{
  25x1 struct array containing the fields:

    name
    date
    bytes
    isdir
    datenum
    statinfo
}

and dir.name contains all the filenames in the directory.

When I run a simple stand-alone program that calls dir_listing, I get:
$ ./test4
error: `dir' undefined near line 2 column 13
error: called from:
error:   d:\labs\cpp\OctaveDemo\dir_listing.m at line 2, column 11
error: octave_base_value::convert_to_str_internal (): wrong type argument 
`<unknown type>'

> If the "dir" function is not found, then it appears that the problem is unique 
> to your install.

That makes sense.  But would it be the Octave install, or the MinGW install?

> What version of MinGW are you running?

That turns out to be a harder question to answer than one might think.  The 
installer that I ran is mingw-get-inst-20110316.  The Octave installer is 
Octave-3.2.4_i686-pc-mingw32_gcc-4.40_setup.  I didn't record either 
installation, but my normal behavior is to accept all defaults, so I suspect 
that's what I have.

> Ben
>
> p.s. I'm not a window's user, so I will be of limited help in resolving this. 
> Hopefully, someone else will offer some advice.

Thanks for the effort.  When I retire, I won't be a Windows user, either. :)

>


--
Daryl Lee