On 18 Mar '08, at 9:11 PM, Chris Meyer wrote:

In older versions of Xcode (2.5!) it used to be possible to break on console
output by putting a breakpoint on NSLog.
Is there any equivalent breakpoint to set to stop on console messages in
Xcode 3.x (or 10.5)?

Not all console output is generated by NSLog. (It has nothing to do with the version of Xcode, and it's not a recent change.)

I'm getting a message like "<Error>: CGImageSourceCreateWithData data
parameter is nil\n" Of course this bug is easy to fix if I can figure out
where it is coming from...!

For example, that line probably comes from CoreGraphics. That framework doesn't use Foundation, so it can't call NSLog. It probably used the [private] CFLog, or asl_send, or just an old-fashioned fprintf.

—Jens

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