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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 - -Wextra-semi shouldn't report semicolons in macros entirely in system headers"
href="https://bugs.llvm.org/show_bug.cgi?id=40874">40874</a>
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<th>Summary</th>
<td>-Wextra-semi shouldn't report semicolons in macros entirely in system headers
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>enhancement
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Frontend
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>nicolasweber@gmx.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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</tr></table>
<p>
<div>
<pre>Consider this ATL code:
thakis@thakis:~/src/chrome/src$ cat test.cc
#include <atlbase.h>
#include <atlcom.h>
class __declspec(uuid("00000000-0000-0000-c000-000000000046"))
GaiaCredentialProvider {};
EXTERN_C const CLSID CLSID_GaiaCredentialProvider;
class CGaiaCredentialProvider
: public CComObjectRootEx<CComMultiThreadModel>,
public CComCoClass<CGaiaCredentialProvider,
&CLSID_GaiaCredentialProvider> {
public:
DECLARE_NO_REGISTRY()
BEGIN_COM_MAP(CGaiaCredentialProvider)
END_COM_MAP()
};
OBJECT_ENTRY_AUTO(__uuidof(GaiaCredentialProvider), CGaiaCredentialProvider)
thakis@thakis:~/src/chrome/src$
third_party/llvm-build/Release+Asserts/bin/clang-cl -c test.cc -imsvc
third_party/depot_tools/win_toolchain/vs_files/818a152b3f1da991c1725d85be19a0f27af6bab4/VC/Tools/MSVC/14.16.27023/atlmfc/include
-imsvc
third_party/depot_tools/win_toolchain/vs_files/818a152b3f1da991c1725d85be19a0f27af6bab4/win_sdk/Include/10.0.17763.0/ucrt/
-imsvc
third_party/depot_tools/win_toolchain/vs_files/818a152b3f1da991c1725d85be19a0f27af6bab4/VC/Tools/MSVC/14.16.27023/include/
-imsvc
third_party/depot_tools/win_toolchain/vs_files/818a152b3f1da991c1725d85be19a0f27af6bab4/win_sdk/Include/10.0.17763.0/um
-imsvc
third_party/depot_tools/win_toolchain/vs_files/818a152b3f1da991c1725d85be19a0f27af6bab4/win_sdk/Include/10.0.17763.0/shared/
-Wextra-semi
test.cc(20,1): warning: extra ';' outside of a function is incompatible with
C++98 [-Wc++98-compat-extra-semi]
OBJECT_ENTRY_AUTO(__uuidof(GaiaCredentialProvider), CGaiaCredentialProvider)
^
third_party/depot_tools/win_toolchain/vs_files/818a152b3f1da991c1725d85be19a0f27af6bab4/VC/Tools/MSVC/14.16.27023/atlmfc/include/atlcom.h(2407,2):
note:
expanded from macro 'OBJECT_ENTRY_AUTO'
OBJECT_ENTRY_PRAGMA(class)
^
third_party/depot_tools/win_toolchain/vs_files/818a152b3f1da991c1725d85be19a0f27af6bab4/VC/Tools/MSVC/14.16.27023/atlmfc/include/atlcom.h(2396,91):
note:
expanded from macro 'OBJECT_ENTRY_PRAGMA'
#define OBJECT_ENTRY_PRAGMA(class) __pragma(comment(linker,
"/include:__pobjMap_" #class));
^
1 warning generated.
-Wextra-semi complains about this, even though no part of the macro expansion
that adds the extra semicolon is in user code. clang shouldn't emit
-Wextra-semi for semicolons are 100% in system headers.</pre>
</div>
</p>
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