http://llvm.org/bugs/show_bug.cgi?id=8462
Summary: Argument deduction failure in function templates
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Created an attachment (id=5661)
--> (http://llvm.org/bugs/attachment.cgi?id=5661)
Test case
There is a problem with deducing template parameters of function templates when
multiple inheritance is involved.
The attached source code procduces the follow error messages
reduction.cpp:32:16: error: no matching function for call to 'F'
T *n = ::F<tag>(*t);
^~~~~~~~
reduction.cpp:42:10: note: in instantiation of member function 'context<struct
D, struct T1>::doit' requested here
con1.doit(&d);
^
reduction.cpp:21:4: note: candidate template ignored: failed template argument
deduction
T* F(sugar<T, Tag> &b) { return static_cast<T*>(b.n); }
^
reduction.cpp:23:4: note: candidate template ignored: failed template argument
deduction
T* F(B<T, Tag> &b) { return b.n; }
^
reduction.cpp:25:4: note: candidate template ignored: failed template argument
deduction
T* F(BT<T, Tag> &b) { return b.n; }
^
reduction.cpp:32:16: error: no matching function for call to 'F'
T *n = ::F<tag>(*t);
^~~~~~~~
reduction.cpp:44:10: note: in instantiation of member function 'context<struct
D, struct T2>::doit' requested here
con2.doit(&d);
^
reduction.cpp:21:4: note: candidate template ignored: failed template argument
deduction
T* F(sugar<T, Tag> &b) { return static_cast<T*>(b.n); }
^
reduction.cpp:23:4: note: candidate template ignored: failed template argument
deduction
T* F(B<T, Tag> &b) { return b.n; }
^
reduction.cpp:25:4: note: candidate template ignored: failed template argument
deduction
T* F(BT<T, Tag> &b) { return b.n; }
^
10 diagnostics generated.
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