Windows compile error

[rafaelBauer]

Expected Behavior

Previously it was compiling in Windows using clang-cl 13.

Actual Behavior

Failing with message: 'boost::sml::back::policies::thread_safe<std::recursive_mutex>::create_lock()::lock_guard::~lock_guard()::lock_guard::lock_' is not a member of class 'lock_guard' ~lock_guard() { lock_.unlock(); }

Steps to Reproduce the Problem

Compile with clang-cl 13

Specifications

• Version: master
• Platform: Windows clang-cl
• Subsystem:

[Alex0vSky]

So that we can solve the problem, we need to look at the source code that causes the error and the compilation options.

If the source code is not provided, the issue may be closed soon - a minimally reproducible example has not been provided in full.

Yes, it can be just

#include "sml.hpp"
void main() {}

If we look deeper, then maybe here error:

    struct lock_guard {
      constexpr explicit lock_guard(TLock &lock) : lock_{lock} { lock_.lock(); }
      ~lock_guard() { lock_.unlock(); }
      TLock &lock_;
    };

and solution is declare member lock_ before using it.

    struct lock_guard {
      TLock &lock_;
      constexpr explicit lock_guard(TLock &lock) : lock_{lock} { lock_.lock(); }
      ~lock_guard() { lock_.unlock(); }
    };

But declare before use rule not required inside a class SO