negative error status: gcc vs. cl
Thu Jul 8 12:01:00 GMT 2004
> -----Original Message-----
> From: cygwin-owner On Behalf Of Corinna Vinschen
> Sent: 08 July 2004 11:09
> On Jul 8 11:49, Daniel Lungu wrote:
> > Feel like bash tcsh on Cygwin mess up with negative exit
> status from a cl
> > compiled .exe
> The answer is "don't do that". Use positive values in the range from
> 0 to 255. See
Well, according to that page, the answer is 'you may do that':
"The value of status may be 0, EXIT_SUCCESS, EXIT_FAILURE, [CX] or any
but what you shouldn't do is expect the exit status in the shell to be
anything other than the least-significant byte of the value you passed:
"though only the least significant 8 bits (that is, status & 0377) shall be
available to a waiting parent process."
So -2 comes back as 254. Sounds like perfectly correct 2's complement
arithmetic to me!
Can't think of a witty .sigline today....
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