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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Missing '-Wreturn-type' warning for 'main' having no return statement in C89 mode"
href="http://llvm.org/bugs/show_bug.cgi?id=21276">21276</a>
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<th>Summary</th>
<td>Missing '-Wreturn-type' warning for 'main' having no return statement in C89 mode
</td>
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>All
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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
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<th>Component</th>
<td>Frontend
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>mimomorin@gmail.com
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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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<p>
<div>
<pre>Clang does not emit "control reaches end of non-void function [-Wreturn-type]"
warning for 'main' having no return statement in C89 mode (-std=c89, gnu89).
Clang adds implicit-return-zero in C89 mode. But, since the C89 standard does
not require it, wouldn't it be better to emit warning?</pre>
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