[C++] what are allowed/no allowed in signal handler in C++17 (based on C11)

not allowed in signal handlers

• Calling any standard library function (unless explicitly specified as signal-safe)
• Calling new or delete (unless a safe memory allocator is used)
• Using objects that are thread_local
• Using dynamic_cast
• Throwing an exception or entering a try block
• Performing or waiting for the first initialization of a variable with static storage duration

allowed in signal handlers

• abort() and _Exit()
• quick_exit(), if the functions registered with at_quick_exit() are signal-safe
• memcpy() and memmove()
• All member functions of std::numeric_limits<>
• All functions for std::initializer_lists
• All type traits