What header file is stdafx.h?

The stdafx.h header file means that the compiler uses a precompiled header file through a header file stdafx.h; the stdafx.h header file does not have a function library, but only defines some environment parameters, so that the compiled The program can run under 32-bit operating system environment.

The operating environment of this tutorial: windows7 system, c99 version, Dell G3 computer.

The "stdafx.h" header file means that the compiler uses a precompiled header file through a header file stdafx.h.

The "stdafx.h" header file does not have a function library, but only defines some environment parameters so that the compiled program can run in a 32-bit operating system environment.

When using AppWizard to automatically generate certain projects, the system will automatically include the required header files in stdafx.h first. In this way, you only need to directly include the stdafx.h file.

Extended information

The compiler uses the precompiled header file through a header file stdafx.h. The header file name stdafx.h can be specified in the project's compilation settings. The compiler believes that all code before the directive #include "stdafx.h" is precompiled. It skips the #include "stdafx.h" directive and uses projectname.pch to compile all code after this directive.

The precompiled header file is generated by compiling stdafx.cpp and is named after the project name. Since the suffix of the precompiled header file is "pch", the compilation result file is projectname.pch.

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