I have a strange compile error with GCC 5.1.0 (tdm64-1) compiling the following code
template <class T>
struct test {
template <class X>
bool func();
};
template <class X, class Y>
bool testfunc(X x, Y y)
{
test<Y> s;
if (s.func<X>()) // <-- parse error here
return false;
}
void func2()
{
testfunc( double(), long() );
}
The error is
testX.cpp: In function 'bool testfunc(X, Y)':
testX.cpp:12:15: error: expected primary-expression before '>' token
if (s.func<X>())
^
testX.cpp:12:17: error: expected primary-expression before ')' token
if (s.func<X>())
Note that the error only occurs in the version when Y is a template parameter. When I remove the Y template parameter and instantiate test with a known type (e.g. test< int>), it compiles without error.
So what is wrong here?