[LLVMbugs] [Bug 3947] New: SmallVector::insert overload ambiguous when T=int

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3947

           Summary: SmallVector::insert overload ambiguous when T=int
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core LLVM classes
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: johnson.peter at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=2793)
 --> (http://llvm.org/bugs/attachment.cgi?id=2793)
Testcase demonstrating the issue

Two of the SmallVector::insert function overloads are ambiguous when T=int (or
something like size_type):

iterator insert(iterator I, size_type NumToInsert, const T &Elt)

and

template<typename ItTy>
iterator insert(iterator I, ItTy From, ItTy To)

SmallVector<int, X>::insert(..., 2, 2) results in G++ 4.3 picking the templated
overload (as ItTy=int) and ending up with a lot of errors.

Not sure how to fix this, other than untemplating the ItTy version.  Note that
std::vector does not have this limitation.


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