Enable the “Typecheck calls to…” warning for NSLog and stringWithFormat:

Originator:boredzo
Number:rdar://7375186 Date Originated:2009-11-07T19:31-0800
Status:Open Resolved:
Product:Developer Tools Product Version:4.2.1/5646
Classification:Enhancement Reproducible:Not Applicable
 
Summary:
The “Typecheck calls to printf/scanf” warning should also check calls to NSLog and CFStringCreateWithFormat and messages to +[NSString stringWithFormat:] and -[NSString initWithFormat:] (and all of those APIs' I-have-a-va_list-already siblings).

Steps to Reproduce:
1. Write a statement that calls NSLog with arguments that don't match the format string; for example: NSLog(@"Hello %s!", [NSString stringWithString:@"world"]);
2. Turn on the “Typecheck calls to printf/scanf” warning.
3. Compile the code.

Expected Results:
The compiler raises the warning for the bogus NSLog call.

Actual Results:
The compiler doesn't know about NSLog, so it doesn't examine its arguments.

Regression:
No.

Notes:
The version and build number I entered are those of GCC, from Xcode 3.2.

I also tested with Clang. That doesn't do it, either.

Comments


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