Another more like a feature request:

Take for example, the following code:

class Person
{
	int age_;
public:
	int get_age()const { return age_; }
	void set_age(int age){ age_ = age; }
	__declspec(property(get=get_age, put = set_age)) int age;
};

theide/Assist++ will put a red rect at the beginning of __declspec, with error message ...'__declspec' attributes are not enabled; use '-fdeclspec'..., even though the flag has been turned on. This is kind of a fictitious example. The real issue here is, the flags I set in "Setup > Build Methods" for CLANG, under common c++ options

-std=c++20 -Wno-logical-op-parentheses -fdeclspec

is not respected by assist++.

So if someone wants to try some c++20 new language features, assist++ will stick to builtin option of '-std=c++14' and keep bugging him.