I use .hpp because I want the user to differentiate what headers are C++ headers, and what headers are C headers. This can be important when your project is using both C and C++ modules: Like someone else explained before me, you should do it very carefully, and its starts by the "contract" you offer through the extension.hpp : C++ Headers

.hpp is an attempt to distinguish header files where there are significant c and c++ differences. A common usage is for the .hpp to have the necessary cpp wrappers or namespace and then include the .h in order to expose a c library to both c and c++.

2012年8月7日 · .hpp, .H, etc. is a loose convention for C++ header files, .tcc is a loose convention for C++ template implementation, .h is pretty strong convention for c files. Boost uses hpp extension, QT uses .h extension, STL do not have extension. I am sure there are libraries which use .H but have not seen any.

2013年11月16日 · As mentioned in the comments .hpp and .h are essentially the same (for compiling c++, not c). If you are having problems linking your project it's not because of your file extensions. In the header files you typically 'prototype' the class definition so that all of your class members can be used, not just ones defined before the current code.

2011年5月5日 · Whether you have file.hpp or file.h is just a matter of preference. Personally, I use .hpp to indicate C++ rather than C. In C++, unlike for example Java, classes in the global namespace are not public or private. You can, however, hide or limit access to classes in various ways. For example: Having them private in another class. Using namespaces.

2009年12月7日 · In C++, the file extension doesn't actually matter. The use of .h, .hpp, .hxx, or no file extension are all by convention. The standard library uses no file extension for its header files. Many projects, including Boost, use .hpp. Many projects …

2019年7月2日 · The implementations are in both the hpp and the cpp files. hpp: contains the generic templates template<class T>, cpp: contains non template functions or explicit instantiations template<pcl::PointXYZ> Both files .h and .hpp can be merged in same file but is clearer to separate them.

2016年10月12日 · List.hpp contains function definitions for the List.h file. The List.h file includes "List.hpp" in the 3rd to last line. test_list.cpp runs the program and includes "List.h" at the top. I need a makefile that will compile these into an executable "project.x".

2012年2月10日 · The .cpp file defines those functions - i.e. the compiler compiles the code and therefore produces the actual machine code to perform those actions that are declared in the corresponding .hpp file. In your example, main.cpp includes a .hpp file. The preprocessor replaces the #include with the contents of the .hpp file.

2013年10月1日 · .h is a perfectly valid alternative for .hpp. It's just an extension for a header, it doesn't mean it's c. Your compiler will treat this file the same way no matter whether the extension is .h or .hpp. Yet if for some reason you still need .hpp extension, just click New Item ~> Header File (.h) and at the bottom name it with .hpp extension.