https://llvm.org/bugs/show_bug.cgi?id=23939
Bug ID: 23939
Summary: Accepts invalid when undeduced context encountered
deducing from a trailing parameter pack
Product: clang
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
In the call to "f" from "h" below, the deduction for T@1 should find both
"fptype" and "Func" and fail.
### SOURCE (<stdin>):
template <typename ...T> struct A;
void g();
void g(bool);
typedef void (*fptype)();
struct Func { operator fptype(); } func;
template<typename ...T> void f(A<T ...> *ap, T ...b);
void h(A<fptype, fptype> *ap) { f(ap, g, func); }
### COMPILER INVOCATION:
clang++ -std=c++11 -c -x c++ -
### ACTUAL OUTPUT:
(Clean compile).
### EXPECTED OUTPUT:
(Error message).
### COMPILER VERSION INFO:
clang version 3.7.0 (trunk)
Target: powerpc64le-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/ppc64le-redhat-linux/4.8.2
Found candidate GCC installation: /usr/lib/gcc/ppc64le-redhat-linux/4.8.3
Selected GCC installation: /usr/lib/gcc/ppc64le-redhat-linux/4.8.3
Candidate multilib: .;@m64
Selected multilib: .;@m64
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