I have this template that compiles successfully with g++. When I remove a seemingly irrelevant function, it results in a syntax error.
Exhibit 1: This compiles successfully. Note that this is the only content of the file; the template is not instantiated.
template<typename T> struct aaa {
void w() {
T x;
x.goo<5>();
}
template<float***, char> void goo() {
}
};
Exhibit 2: The following results in a syntax error.
template<typename T> struct aaa {
void w() {
T x;
x.goo<5>();
}
};
The error is
aoeu.cpp: In member function 'void aaa<T>::w()':
aoeu.cpp:6:18: error: expected primary-expression before ')' token
x.goo<5>();
I tried this using GCC 4.8 and 5.2 with the same result. How does the presence of void goo influence whether the line x.goo<5>(); generates an error?
