https://llvm.org/bugs/show_bug.cgi?id=26086
Bug ID: 26086
Summary: Alias template in default template arguments expanded
too early
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: unassignedclangb...@nondot.org
Reporter: rs2...@gmail.com
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
This variant of CWG1558's (http://wg21.link/CWG1558) example compiles in clang
but not GCC:
template<class> using void_t = void;
template<class T, class = void_t<typename T::foo>> void f();
int main() {
f<int>();
}
Presumably the use of 'typename T::foo' in the default template argument should
cause substitution failure.
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