Re: Where does printf go?
Re: Where does printf go?
- Subject: Re: Where does printf go?
- From: Jens Alfke <email@hidden>
- Date: Tue, 28 Oct 2014 09:49:35 -0700
On Oct 28, 2014, at 3:13 AM, Jonathan Taylor < email@hidden> wrote:
If Xcode is running, printf goes to the Xcode console. If my program is launched from the OS X console, printf will go there. My memory is that if neither of these conditions are met then the output will go to the Console Log as per NSLog. That doesn't seem to be the case any more.
stderr gets logged to ASL and can be displayed in Console.app. I don't think stdout ever went anywhere in particular in an app launched via the GUI … it's always just been dropped on the floor.
I basically never use printf for logging in any code that might end up in a GUI app, I use fprintf(stderr, …) instead.
—Jens |
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