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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Concatenated Objective C format string triggers Sema::CheckFormatString "String literal not of constant array type!" assert"
href="http://llvm.org/bugs/show_bug.cgi?id=18939">18939</a>
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<th>Summary</th>
<td>Concatenated Objective C format string triggers Sema::CheckFormatString "String literal not of constant array type!" assert
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>-New Bugs
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>stephan.bergmann.secondary@googlemail.com
</td>
</tr>
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<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
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</tr></table>
<p>
<div>
<pre>At least on recent trunk incl. r201795 "Sema: Emit a warning for non-null
terminated format strings and other pathological cases," compiling the
Objective C code
#import <Foundation/NSString.h>
void test(void) { [NSString stringWithFormat: @"" @""]; }
via "clang -c test.m" fails with
Assertion failed: (T && "String literal not of constant array type!"),
function CheckFormatString, file .../tools/clang/lib/Sema/SemaChecking.cpp,
line 3533.
Appears that such a concatenation of Objective C string literals is not of
ConstantArrayType.</pre>
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