Syntax Error on template definition

[J. Berger]

Hi there,
I am trying to check a codebase and came across a syntax error when parsing a statement like this:

```cpp
template <
size_t I = 0, typename... ArgsT,
std::enable_if_t<I<sizeof...(argst)>* = nullptr</sizeof...(argst)>

SizeType _variant_helper(size_t, std::variant<argst...>&);</argst...>

```

The big three compilers (Clang, MSVC and G++) called with settings for C++20, Wall and pedantic think this is perfectly fine.

CppCheck reports a syntax error.

[CHR]

Thanks for reporting, ticket is here: https://trac.cppcheck.net/ticket/12789