Given these compile options: 

  Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
                        PERL_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS
                        PERL_MALLOC_WRAP PL_OP_SLAB_ALLOC USE_64_BIT_I
+NT
                        USE_ITHREADS USE_LARGE_FILES USE_PERLIO
  Built under MSWin32

[download]

Can anyone tell me what function is being called here: 

## perlio.c(592) v5.10.1
         return (*tab->Dup)(aTHX_ PerlIO_allocate(aTHX), f, param, fla
+gs);

[download]

And also, how did you track it down?

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Hunt the func by BrowserUk

Title:
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