Compile Header Warranty For Free

Header-only libraries do not need to be separately compiled, packaged and installed in order to be used. All that is required is to point the compiler at the location of the headers, and then #include the header files into the application source.

Header files are not compiled directly, Instead, header files are included into other source files via #include . In fact, when you invoke a C/C++ compiler, before the ?real? compiler starts, it runs a pre-processor whose job is to handle the special instructions that begin with # .

The headers in a header-only library are filled with implementation details that get in the way of understanding the interface. With a compiled library, all you see is the interface and a brief commentary on what the implementation does, and that's usually all you want. That's really all you should want.

You can also use the /Fp (Name . Pch File) option to specify a name for the precompiled header file. If you use /Ycfilename, the compiler compiles all code up to and including the specified file for subsequent use with the /Yu (Use Precompiled Header File) option.

By placing all of your code in between the #ifndef and #endif , you ensure that it is only read once during the compilation process.

Header files are not compiled directly, Instead, header files are included into other source files via #include . In fact, when you invoke a C/C++ compiler, before the ?real? compiler starts, it runs a pre-processor whose job is to handle the special instructions that begin with # .

C files contain the implementation of the code, while . h files exist to provide interfaces that allow a file to access functions, global variables, and macros from other files. When you #include "file. h" or #include <folder/file.