<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Objective-C pointer bug with fobjc-arc"
href="https://bugs.llvm.org/show_bug.cgi?id=42533">42533</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Objective-C pointer bug with fobjc-arc
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Macintosh
</td>
</tr>
<tr>
<th>OS</th>
<td>MacOS X
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>Frontend
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mike.kluev@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
</td>
</tr></table>
<p>
<div>
<pre>when compiling the following app with "-fobjc-arc -Werror" option i am not
getting expected compilation error. the app crashes at run time, obviously.
without "-fobjc-arc" option compiler issues a warning / error as expected.
============
#import <Foundation/Foundation.h>
@interface Animal: NSObject
@end
@implementation Animal
@end
@interface Dog: Animal
- (void)bark;
@end
@implementation Dog
- (void)bark {}
@end
void bark(Dog** dog) {
[*dog bark];
}
int main(int argc, const char* argv[]) {
Animal* animal = [Animal new];
bark(&animal);
}
============
// same with foundation types
#import <Foundation/Foundation.h>
void foo(NSMutableDictionary** mutableDictionary) {
(*mutableDictionary)[@"hello"] = @"world";
}
int main(int argc, const char* argv[]) {
NSDictionary* dictionary = [NSDictionary new];
foo(&dictionary);
}</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>