[fpc-pascal]Exit codes of called programs.

Michael Van Canneyt michael.vancanneyt at wisa.be
Wed Apr 16 16:22:52 CEST 2003

On Wed, 16 Apr 2003, Jonas Maebe wrote:

> On woensdag, apr 16, 2003, at 15:28 Europe/Brussels, A.J. Venter wrote:
> > OK so shell is out, after all I am not all that concerned with how bash
> > exited. Assignstream as well. I did not even know that dos exec could
> > work under Linux, I somehow seem to think this is a less than adequate
> > approach though.
> The "dos" unit is simply an implementation of Borland's Dos unit, ie.
> it has the same interface, but the implementation is completely
> OS-dependent. There's nothing bad about using it under Linux or Win32.
> It doesn't allow you to capture the output of a program though. popen()
> (in the Linux unit) does, but I don't know whether it allows you to get
> the exit code. Check the documentation (units.pdf).

It does if you use pclose() to close it the file.
The return value of pclose is the exit code of the program.


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