[12094] in Athena Bugs
sun4 7.6R: matlab external interface
daemon@ATHENA.MIT.EDU (jesse@MIT.EDU)
Fri May 27 14:11:09 1994
From: jesse@MIT.EDU
To: bugs@MIT.EDU
Date: Fri, 27 May 94 14:11:02 EDT
System name: dale
Type and version: SPARC/Classic 7.6R
Display type: cgthree
What were you trying to do?
Use the external interface for calling matlab routines
within C programs.
What's wrong:
In the engOpen("\0") line, matlab starts, but nothing is
returned because the way matlab is set up here on athena,
the command matlab actually executes the shell script
matsim.sh in /mit/matlab/Matlab4.1/bin which sets a lot
of environment variables and then starts matlab.
What should have happened:
Possibly I need to change the startcmd line given as an
argument to engOpen() to something better. But just as a
note, none of the example programs that matlab supplies do
not work because of this. That is because engOpen I believe
tries to connect pipes to the stdin and stdout for matsim.sh
instead of the actual matlab process, and so engOpen doesn't
return anything at all for a pointer to the matlab engine.
If another file could be created that sets all the environment
variables, then I could source that files first, then use
engOpen("matlab4.x").
Please describe any relevant documentation references:
The Matlab External Interface Guide - which actually has some
typos in it.
