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Lets say I define a macro:
#define MAX(x,y) ((x)>(y)?(x):(y))
What would happen if I call MAX(I++,J++)?
I couldn’t understand why the answer would not be as expected.
Macros are just for the preprocessor. This is what would get compiled by the C compiler:
As you can see, if I is larger than J then I will get incremented twice and J once, otherwise it’s vice versa.
Your macro is not even correct. The outer layer of parentheses is wrong here, which will cause a compilation error: