Behaviour | tree engine , including a compiler which compiles DSL | Game Engine library

• the class within which the member is declared is the class that a member function pointer will bind to.
• ->* on a Derived doesn't work with a Base:: member function pointer unless the private Base in Derived is accessible to you (e.g. within a member function of Derived or in a function declared as friend of Derived).
• c-style casts allow you to convert Derived* to Base* as well as member function pointers of those types, even though Base is not accessible (this would be illegal for any c++-style cast), e.g.:

The evaluation order of A = B was not specified before c++17, after c++17 B is guaranteed to be evaluated before A, see https://en.cppreference.com/w/cpp/language/eval_order rule 20.

The behaviour of valMap[val] = valMap.size(); is therefore unspecified in c++14, you should use:

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Is has something to to with operator affinity which determines the order of evaluation. Like math, parenthesis have a higher priority than multiplications with have a higher priority than plus and minus. The second part of the expression will never get evaluated and thus ignored resulting in 1 e.g. if(TRUE){1}else{0} + message("I'll never get printed"). Including the parenthesis will force to first evaluate both parts seperatley and then do the plus resulting in 2.

An answer from a core developer:

Unintended consequence of Mark Shannon's change that refactors fast opcode dispatching: https://github.com/python/cpython/commit/4958f5d69dd2bf86866c43491caf72f774ddec97 -- the INPLACE_ADD opcode no longer uses the "slow" dispatch path that checks for interrupts and such.

It's possible to get the Perl behavior by using a sequence with a custom generator:

GCC and Clang report that S is trivially copyable in C++11 through C++23 standard modes. MSVC reports that S is not trivially copyable in C++14 through C++20 standard modes.

N3337 (~ C++11) and N4140 (~ C++14) say:

A trivially copyable class is a class that:

• has no non-trivial copy constructors,
• has no non-trivial move constructors,
• has no non-trivial copy assignment operators,
• has no non-trivial move assignment operators, and
• has a trivial destructor.

By this definition, S is trivially copyable.

N4659 (~ C++17) says:

A trivially copyable class is a class:

• where each copy constructor, move constructor, copy assignment operator, and move assignment operator is either deleted or trivial,
• that has at least one non-deleted copy constructor, move constructor, copy assignment operator, or move assignment operator, and
• that has a trivial, non-deleted destructor

By this definition, S is not trivially copyable.

N4860 (~ C++20) says:

A trivially copyable class is a class:

• that has at least one eligible copy constructor, move constructor, copy assignment operator, or move assignment operator,
• where each eligible copy constructor, move constructor, copy assignment operator, and move assignment operator is trivial, and
• that has a trivial, non-deleted destructor.

By this definition, S is not trivially copyable.

Thus, as published, S was trivally copyable in C++11 and C++14, but not in C++17 and C++20.

The change was adopted from DR 1734 in February 2016. Implementors generally treat DRs as though they apply to all prior language standards by convention. Thus, by the published standard for C++11 and C++14, S was trivially copyable, and by convention, newer compiler versions might choose to treat S as not trivially copyable in C++11 and C++14 modes. Thus, all compilers could be said to be correct for C++11 and C++14.

For C++17 and beyond, S is unambiguously not trivially copyable so GCC and Clang are incorrect. This is GCC bug #96288 and LLVM bug #39050

You are almost there. You just need to also config the following (Don't forget to restart your VS):

The problem should be in the order of your pages: the root path works as a collector of all the pages, you should try to add the exact keyword to the Router path. Here the reference for the differences between the different notations.