[llvm-bugs] [Bug 24361] New: Marcos are treated as user-defined literals and are not expanded

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=24361

            Bug ID: 24361
           Summary: Marcos are treated as user-defined literals and are
                    not expanded
           Product: clang
           Version: 3.6
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++11
          Assignee: unassignedclangbugs at nondot.org
          Reporter: dieselmachine at mail.ru
                CC: dgregor at apple.com, llvm-bugs at lists.llvm.org
    Classification: Unclassified

If you try to compile this code with -std=c++11, __DATE__ and __TIME__ macros
will be treated as user-defined literals. These macros are expanded correctly
for older standard.

const char* s = "Build "__DATE__" at "__TIME__" ";

Also note this comment in clang/lib/Lex/Lexer.cpp, line 1657. Why ud-suffix
takes precedence over macro? Macro should be expanded first.

// them. We assume a suffix beginning with a UCN or UTF-8 character is more
// likely to be a ud-suffix than a macro, however, and accept that.

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20150805/e47077b6/attachment-0001.html>