Re: NSLog and [NSDictionary description], bug?
Re: NSLog and [NSDictionary description], bug?
- Subject: Re: NSLog and [NSDictionary description], bug?
- From: Nicko van Someren <email@hidden>
- Date: Tue, 6 Apr 2004 12:21:39 +0100
On 6 Apr 2004, at 11:49, Stiphane Sudre wrote:
I'm using the following line of code for debugging purpose:
NSLog([myDictionary description]);
where myDictionary is a NSDictionary.
With some dictionaries, it crashes.
The most likely explanation is that something in the description of the
dictionary is being interpreted as a formatting instruction that
requires an argument of some sort.
The strange part is that:
- when I do a po in gdb (i.e. the similar kind of process AFAIK), it
works.
- when I do NSLog(@"%@",myDictionary); it works too (there is no %@ in
the dictionary objects).
Neither of the above will ever try to parse or interpret the dictionary
description, they will just dump it.
Is this a known bug or limitation in NSLog?
The prototype for NSLog says:
void NSLog(NSString *format, ...)
What you are passing in your original call, while correct from the
point of view of types, is not a format string, it's just a string.
The correct and safe way to do what you want to do is
NSLog(@"%@",myDictionary), which also takes less typing!
Nicko
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