How to use the built-in debugger macro in C++

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Use the built-in debug macro

In the process of program debugging, you often want to know which module is currently running, which function is smaller, which line is in the source file, and so on. If you add this information manually, it will undoubtedly put a great burden on programmers. Therefore, C++ provides several macros, _ _ FILE__, _ _ FUNCTION__, and _ _ LINE__, which you can use to "automatically" get information about modules, functions, and lines. Examine the following procedure.

# include using namespace std;void func1 () {cout