https://llvm.org/bugs/show_bug.cgi?id=31047
Bug ID: 31047
Summary: Improve "x is not a class, namespace, or enumeration"
diagnostic. When x is a template class.
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: peetluge...@yandex.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
template<typename T>
struct Base {
int foo();
};
template<typename T>
struct Derived : Base<T> {
void bar();
};
template <typename T>
void Derived<T>::bar() {
Base::foo();
}clang
Clang (-std=c++1z -fsyntax-only -Wall):
./test19.cpp:13:3: error: 'Base' is not a class, namespace, or enumeration
Base::foo();
^
./test19.cpp:2:8: note: 'Base' declared here
struct Base {
^
1 error generated.
GCC (v6.2.1):
./test19.cpp: In member function ‘void Derived<T>::bar()’:
./test19.cpp:13:3: error: ‘template<class T> struct Base’ used without template
parameters
Base::foo();
^~~~
It would be nice to have diagnostics like gcc which indicates that Base is
actually a template but it was used without template parameters.
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