[LLVMbugs] [Bug 14358] New: implementation problem with istreambuf_iterator operator++

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Nov 15 15:24:04 PST 2012


             Bug #: 14358
           Summary: implementation problem with istreambuf_iterator
           Product: libc++
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
        AssignedTo: hhinnant at apple.com
        ReportedBy: kdt3rd at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 9550
  --> http://llvm.org/bugs/attachment.cgi?id=9550
proposed patch to fix

per, the effect of operator++ should only be to call sbumpc on the
streambuf, not to actually trigger a sgetc which will cause underflow to

per, the effect of operator++(int) is similarly not currently correct

Attached is a patch which I believe fixes the issue.

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