Pre/Post-main Function Call Implementation in C

In C++, pre/post-main function call can be implemented using a global class instance. Its constructor and destructor are invoked automatically before and after the main function. But in C, no such mechanism. Actually, there’s a glib implementation that can help. You may want to read my previous post about CRT sections of MSVC. I just copy the code and do some renaming:

One limitation in glib code is the lack of support for VS2003 and early versions. #pragma code_seg() is used to implement the same function:

Output from msvc/gcc:

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