Why is my xcode 4.2 log always empty?

Question

in a method that is accessed three times I want to write something to the log.

NSLog(@\"%@\", [response responseString]);

But there is noth

Answer 1

When Console isn't behaving nicely for me (which happens sometimes when I'm doing driver level stuff or multi-threaded apps), a much more reliable thing to do is something like:

- (void) printToLog: (NSString *) aFormattedStringToPrint
{
    // don't forget to remove an older copy of this file before 
    // your app finishes launching
    FILE * aFile = fopen( "/tmp/debuggingoutput.txt", "a");
    if(aFile)
    {
         fprintf(aFile, "%s", [aFormattedStringToPrint UTF8String];
         fflush(aFile);
         fclose(aFile);
    }
}

(you can define a macro like LOGTHIS which might toggle between NSLog and the above more direct and to the point code)

And then you can "tail -f /tmp/debuggingoutput.txt" in your Terminal window while debugging and if nothing appears there, then you know your debugging lines aren't getting hit.