wxString str1 = "hello world"; if(str1.empty()){ std::cout << "string is empty" << std::endl; } else{ std::cout << "string is not empty" << std::endl; }
wxString str2; if(str2.empty()){ std::cout << "string is empty" << std::endl; } else{ std::cout << "string is not empty" << std::endl; }In this example, we declare a wxString object without initializing it, so it should be empty by default. We use the empty() function to confirm this, and the code will output "string is empty". The wxString class is part of the wxWidgets library, which is a popular open-source C++ GUI (Graphical User Interface) library. It provides a wide range of functions and classes for building cross-platform desktop applications in C++.