[llvm-bugs] [Bug 25676] New: compiler rejects allignas with using declaration

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Sun Nov 29 20:00:33 PST 2015


https://llvm.org/bugs/show_bug.cgi?id=25676

            Bug ID: 25676
           Summary: compiler rejects allignas with using declaration
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: jorgensen at kcg.com
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org
    Classification: Unclassified

Attempting to compile:

using Aligned16Buffer alignas(16) = char[8];

results in:

alignas_test.cpp:1:23: error: 'alignas' attribute only applies to variables,
      data members and tag types

I don't have the standard and might not correctly interpret it if I did but
according to various reports one can google, including:

https://stackoverflow.com/questions/15788947/where-can-i-use-alignas-in-c11

The above usage is correct. I compiled this simple test with:

clang++ -std=c++11 -c alignas_test.cpp

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