I know that #inclusion is often described as a text copy-pasting preprocessor directive. Now if a header is #include guarded, or #pragma onced, then h ...

My header files are structured as follows Where utilities.h consists only of functions and parameters.h consists of class and function templates al ...

I have two header files, animation.h and hero.h, here is the code for animation.h: And for hero.h: I get the error message #include file "" incl ...

I have this file main.h and this file events.h, the file events.h needs to include main.h as the singleton of my Events class requires my singleton of ...

I'm trying to understand Steinberg's VST SDK. What's the use of this: without assiging any value in a header file and then PLUGIN_API occurring in ...

I keep getting the error: "Redefinition of 'CBSTree'" and "Previous definition is here" on all my functions in my cbstree.cpp code. I'm not sure why. ...

In a header file functions.h, the first two statements are defining FUNCTIONS_H if not already defined. Can someone explain the reason for this action ...

In the stl implementation that comes along with Visual Studio 12.0 the numeric header looks like this I know that #pragma once is not standard conf ...

I am having a problem when compiling: Multiple definitions of "myFunction()" I will greatly simplify the problem here. Basically, I have 3 files: "mai ...

I try to use the Laravel/Sanctum in a custom Laravel package. As in a default Laravel application, I added it to the composer file, added the migratio ...

AS the title says I am having an issue using include guards. I was not sure if I was using them correctly and so I have already checked several relate ...

I'm trying to teach myself C++ and one small detail that I don't understand keeps bugging me. I understand the need for header guards but I don't unde ...

Why does gcc ignore these header guards in this simple test program? The header file is: And the two .c files are: main.c: source.c: When co ...

Due to error, I needed to implement a header guard in my Header file and Cpp since I have never used it before I don't know what went wrong because on ...

My question is on proper syntax and usage of header guards. For example if I am including a few common libraries in my C++ code can I make a header gu ...

I want to supply some inline convenience functions using std::string in my header alongside with the library functions which use const char *, but I d ...

I want to define a function of auto return type in such a way, that I can call it from multiple .cpp files if I include the header. I have 4 files he ...

I have header base.h containing Eclipse CDT is graying out everything below #ifndef GUARD_H. This would be correct if GUARD_H were defined, but it ...

Even with guards in place, my file is still trying to execute the mkdir twice. I tried putting the ifndef in the other c file but it still executes t ...

I have been reading Zed Shaw's "Learn C The Hard Way". In the 20th chapter, the author creates a header file e.g. headerfile.h and includes the line # ...