Hind Forsum questions

• gcc: what's the difference between "-g" and "-ggdb"?
• Powershell: Adding element to hashtable failed
• Does C++ ABI specify how vTable and RTTI information should exist?
• When should I use subprocess.Popen instead of os.popen?
• Does C# 6.0 support .NET Core, or does .NET Core respond to higher version of C#?
• Why does C++ support for a pure virtual function with an implementation?
• How to add values for java generic map with undetermined "?" value type
• Are javascript property names like "__proto__" not standardized in ES5/6?
• C++11 why the type of 'decltype(x)' and 'decltype((x))' are different?
• Linux "Perf" tool cannot run inside docker images?

Hind Forsum answers