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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Overload resolution depends on declaration order with -fms-compatibility"
href="https://bugs.llvm.org/show_bug.cgi?id=39361">39361</a>
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<th>Summary</th>
<td>Overload resolution depends on declaration order with -fms-compatibility
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Keywords</th>
<td>accepts-invalid, compile-fail, miscompilation
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>hstong@ca.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>Overload resolution with -fms-compatibility seems to be dependent on the order
of declarations. The overload sets f and g are parallels of each other, but
parallel calls do not resolve the same.
### SOURCE (<stdin>):
char *f(float, int);
template <typename T> int f(long, T);
template <typename T> int g(long, T);
char *g(float, int);
bool zip(int x) { return f(x, x) == g(x, x); }
### COMPILER INVOCATION COMMAND:
clang++ -cc1 -triple i386-unknown-linux-gnu -fsyntax-only -x c++ -std=c++03
-fms-compatibility -
### ACTUAL COMPILER OUTPUT:
<stdin>:6:34: error: comparison between pointer and integer ('char *' and
'int')
bool zip(int x) { return f(x, x) == g(x, x); }
~~~~~~~ ^ ~~~~~~~
1 error generated.
### EXPECTED COMPILER OUTPUT:
(Clean compile).
### COMPILER VERSION INFO (clang++ -v):
clang version 8.0.0 (<a href="https://github.com/llvm-mirror/clang.git">https://github.com/llvm-mirror/clang.git</a>
2abe10f0902311fdb2896d3c6223787f51049fac)
(<a href="https://github.com/llvm-mirror/llvm.git">https://github.com/llvm-mirror/llvm.git</a>
4aeb7d033aef4e4345e52330160ea21ade905859)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /opt/wandbox/clang-head/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/6.0.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/5.4.0
Candidate multilib: .;@m64
Selected multilib: .;@m64</pre>
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