<html>
    <head>
      <base href="http://llvm.org/bugs/" />
    </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 --- - Incompatible Type Assignment Not Flagged"
   href="http://llvm.org/bugs/show_bug.cgi?id=19103">19103</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Incompatible Type Assignment Not Flagged
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>compiler-rt
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>3.4
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </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>compiler-rt
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>headsupftw@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>NSString *str0 = [NSNull null];
NSString *str1 = YES ? [NSNull null] : nil;

The two lines will each get a warning "Incompatible pointer types initializing
'NSString *' with an expression of type 'NSNull *'

But the following line doesn't trigger any warnings.
NSString *str2 = YES ? [NSNull null] : (id)nil;

No warnings for the following line.
id a; NSString *str3 = YES ? [NSNull null] : a;

The bug: there should be a warning for the last two scenarios.</pre>
        </div>
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