Does GCC support precompiled headers? To make builds faster, GCC allows you to precompile a header file. To create a precompiled header file, simply compile it as you would any other file, if necessary using
Does GCC support precompiled headers?
To make builds faster, GCC allows you to precompile a header file. To create a precompiled header file, simply compile it as you would any other file, if necessary using the -x option to make the driver treat it as a C or C++ header file.
What should be included in a precompiled header?
Any stable header files, for example Standard Library headers such as , should be included here. The precompiled header is compiled only when it, or any files it includes, are modified. If you only make changes in your project source code, the build will skip compilation for the precompiled header.
How do you make a precompiled header?
How to setup precompiled headers
- Create stdafx. h.
- Create stdafx. cpp.
- Include stdafx. h in every file of your project.
- Configure Visual Studio to use precompiled headers. Go to your project settings, make sure you select “All Configurations”, then go to.
- Configure Visual Studio to create precompiled headers.
What is #include Stdafx H?
Defination: “Stdafx. h” is a precompiled header. Precompiled means once compiled no need to compile again. stdafx. h is basically used in Microsoft Visual Studio to let the compiler know that the files are once compiled and no need to compile it from scratch.
How does Pragma once work?
In the C and C++ programming languages, pragma once is a non-standard but widely supported preprocessor directive designed to cause the current source file to be included only once in a single compilation.
Which compilers support pragma once?
Portability
| Compiler | #pragma once |
|---|---|
| IBM XL C/C++ | Supported (since 13.1.1) |
| Intel C++ Compiler | Supported |
| Microsoft Visual C++ | Supported (since 4.2) |
| NVIDIA CUDA Compiler | Supported (depending on the underlying host compiler) |