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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - clang could emit a different diagnosti when main() uses type deduction + fixIt" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24330&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iq6cBWsiwPup-2JCKfqeBfrinuyIUgcGgqtKUVSzQ1I&s=YUMWVMdbrrY0LryRtpl4AC08X1NGJyNgExcZ3-eNcZ4&e=">24330</a>
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<th>Summary</th>
<td>clang could emit a different diagnosti when main() uses type deduction + fixIt
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Windows NT
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<th>Status</th>
<td>NEW
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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>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>davide@freebsd.org
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>This is mainly my personal taste, but I think clang could emit a different
diagnostic when 'auto' is used as return type, e.g. "
type-deduction is not allowed for main".
main.cpp:1:1: error: 'main' must return 'int'
auto main()
^~~~
int
1 error generated.
Also, it seems we emit a note in C but we don't in C++. Maybe a FixIt could be
used? i.e. "maybe you int main(void)"
./clang main.c
main.c:1:1: warning: return type of 'main' is not 'int' [-Wmain-return-type]
float main()
^
main.c:1:1: note: change return type to 'int'
float main()
^~~~~
int</pre>
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