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Home/ Questions/Q 729267
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Editorial Team
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Editorial Team
Asked: May 14, 20262026-05-14T06:46:40+00:00 2026-05-14T06:46:40+00:00

Is it possible to put a macro in a macro in c++? Something like:

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Is it possible to put a macro in a macro in c++?

Something like:

#define Something\
#ifdef SomethingElse\ //do stuff \
#endif\

I tried and it didn’t work so my guess is it doesn’t work, unless there’s some sort of syntax that can fix it?

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  1. Editorial Team
    Editorial Team
    2026-05-14T06:46:40+00:00Added an answer on May 14, 2026 at 6:46 am

    No, but you can simply refactor this by pulling the #ifdef out as the toplevel, and using two different #define Something ... versions for the true and false branches of the #ifdef.

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