[llvm-bugs] [Bug 47653] New: Working in MSVC but not in CLANG

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Sep 26 09:41:58 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=47653

            Bug ID: 47653
           Summary: Working in MSVC but not in CLANG
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: vortexilation at gmail.com
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

How to convert the following MSVC C based code for compatibility with CLANG
compiler?
In MSVC 2019 16.7.4 the following code manage to compile but not in CLANG
-------------------------------------------------------------------------
if (lpOverlapped)
{
    bResult    = (lpOverlapped->dwCommand == FILE_READ ? ReadFile : WriteFile)(
        lpOverlapped->hFile->FileHandle,
        lpOverlapped->lpBuffer, lpOverlapped->dwBuffer, &dwResult,
(LPOVERLAPPED)lpOverlapped);


    if (! bResult && (dwResult = GetLastError()) != ERROR_IO_PENDING)
    {
        lpOverlapped->Internal    = dwResult;
        PostQueuedCompletionStatus(hCompletionPort, 0, (DWORD)-5,
(LPOVERLAPPED)lpOverlapped);
    }
}
-------------------------------------------------------------------------

The CLANG error goes as :
-------------------------------------------------------------------------
error : called object type 'void *' is not a function or function pointer
-------------------------------------------------------------------------

For this following line :
-------------------------------------------------------------------------
bResult    = (lpOverlapped->dwCommand == FILE_READ ? ReadFile : WriteFile)(
-------------------------------------------------------------------------

How to convert it into CLANG compatible codes?

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