I know that to find if a variable is undeclared in javascript, I can use if (typeof variable === 'undefined'). If I declare a variable as undefined (var variable = undefined), the if statement stil...

I am new to coding in C++ and I want to make a simple Pokemon game. I created a class in a header file and I am defining the functions in a separate .cpp file. I also have a main file where I wil...

What are undeclared identifier errors? What are common causes and how do I fix them? Example error texts: For the Visual Studio compiler: error C2065: 'cout' : undeclared identifier For the GCC ...

I use OutputDebugString in my Delphi Code, but I receive the error: Error: Undeclared identifier: 'OutputDebugString' Which package is this OutputDebugString in?

I am practicing some opengl code, how ever when i want to force the opengl context to use a certain version of opengl through glutInitContextVersion() it fails compilation process and gives this me...

I am using the following code to show the unique identifier to be used for admob test apps. This is with my applicationDidFinishLaunching... // Print IDFA (from AdSupport Framework) for iOS 6 an...

I am using Clang as a syntax checker in my C++ project. It's called through Flycheck in Emacs, and I am getting an annoying use of undeclared identifier error, the following Minimal Working Example...

I have a few constants files "Constants.h" in my project that I am including in the Prefix.pch file to be available to all the classes in my project. They just contain a bunch of #define statements...

I have the code #include <emmintrin.h> #include <stdio.h> void print128_num(__m128i var) { uint16_t *val = (uint16_t*) &var; printf("Numerical: %i %i %i %i %i %i %i %i \n...

I've been getting error C2065s for variables that I've declared in the class header file as public data members, one int and one pointer to that int. The lines of code being flagged as erroneous ar...