[LLVMbugs] [Bug 10470] New: Providing ext/slist would improve GNU compatibility

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=10470

           Summary: Providing ext/slist would improve GNU compatibility
           Product: libc++
           Version: unspecified
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: All Bugs
        AssignedTo: hhinnant at apple.com
        ReportedBy: oneill+llvmbugs at cs.hmc.edu
                CC: llvmbugs at cs.uiuc.edu


Various old code uses ext/slist as a low-overhead linked list. Obviously, C++11
code should really use forward_list, but in the interest of easing migration,
we ought to provide ext/slist.  This is a notable issue because code compiling
with the *old* libstdc++ shipped by Apple can't use forward_list because it
isn't present.

P.S. To make code conditionally choose an appropriate singly-linked list, I can
check for _LIBCPP_VERSION, but is that the “right” way?

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