C++ macro expansion, debugging

Question

I have a bunch of MACROS in C++ code that expand into some functions. And I am debugging something. Just want to see what the code ends up looking like”

Any ideas?

score 13 · Answer 1 · answered Apr 23 '10 at 19:55

13

You can view the preprocessor output to see what the code looks like after it is preprocessed.

gcc and Visual C++ will both preprocess to stdout if you pass the -E flag on the command line to the compiler.

answered Apr 23 '10 at 19:55

James McNellis

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See also http://stackoverflow.com/questions/2271078/how-to-make-g-preprocessor-output-a-newline-in-a-macro – Potatoswatter Apr 23 '10 at 20:15

score 5 · Answer 2 · answered Oct 05 '12 at 21:38

5

/P, see it under C++ - Preprocessor - Process to a File in the Visual Studio's Property Pages, the output file has the .i extension

answered Oct 05 '12 at 21:38

C++ macro expansion, debugging

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