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LocalProcess to read from stderr [message #37244]

Tue, 11 September 2012 12:34

koldo
Messages: 3458
Registered: August 2008

Senior Veteran

Hello all

Now LocalProcess reads output from stdout.

Would it be possible to read also from stderr?

Best regards
Iñaki

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Re: LocalProcess to read from stderr [message #37262 is a reply to message #37244]

Thu, 13 September 2012 14:06

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

So far, error and stdout are unified. We would need to alter interfaces a bit to achieve what you need.

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Re: LocalProcess to read from stderr [message #37275 is a reply to message #37262]

Fri, 14 September 2012 08:54

koldo
Messages: 3458
Registered: August 2008

Senior Veteran

Hello Mirek

I think in Windows, LocalProcess does not get stdout. I have tried this:

String out = Sys("gcc -c mybadprogram.c");

out is empty. However doing this in the command line:

gcc -c mybadprogram.c 2> errorlog.txt

I get in file errorlog.txt the gcc error message.

Best regards
Iñaki

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Re: LocalProcess to read from stderr [message #37286 is a reply to message #37275]

Fri, 14 September 2012 15:24

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

koldo wrote on Fri, 14 September 2012 02:54

Hello Mirek

I think in Windows, LocalProcess does not get stdout. I have tried this:

stderr?

Mirek

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Re: LocalProcess to read from stderr [message #37288 is a reply to message #37286]

Fri, 14 September 2012 23:34

koldo
Messages: 3458
Registered: August 2008

Senior Veteran

Sorry Mirek.

Yes, I meant stderr Rolling Eyes

Best regards
Iñaki

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Re: LocalProcess to read from stderr [message #37309 is a reply to message #37275]

Tue, 18 September 2012 19:48

mirek
Messages: 14291
Registered: November 2005

Ultimate Member

koldo wrote on Fri, 14 September 2012 02:54

Hello Mirek

I think in Windows, LocalProcess does not get stdout. I have tried this:

String out = Sys("gcc -c mybadprogram.c");

out is empty. However doing this in the command line:

Took me a while to figure this out... Smile

The problem is that gcc returns non-zero exit code, which makes Sys return void. See documentation...

Mirek

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Re: LocalProcess to read from stderr [message #37311 is a reply to message #37309]

Tue, 18 September 2012 21:15

koldo
Messages: 3458
Registered: August 2008

Senior Veteran

Hello Mirek

Thank you. You are right.

Best regards
Iñaki

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