Conditional compilation for debug

[valid garden]

So I have a lot of functions in my .hpp files, I want to add some print statements but I want to conditionally compile them, is there any way to do that?

[cosmic creek]

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[torn marlin]

!cppref if constexpr

[cosmic creek]

cppreference.com

constexpr specifier (since C++11)

[torn marlin]

int main() {
    if constexpr(true) {
        printf("hi");
    }
}

Alternatively

int main() {
    #ifdef DEBUG
        printf("hi");
    #endif
}

[valid garden]

Thanks

[silk lichen]

There's also _DEBUG switch which is also enabled only in debug builds. For example, MSVC-specific assertions only work with this switch. I recommend checking for both:

#if defined(DEBUG) || defined(_DEBUG)
  printf("hi!");
#endif

[cosmic creek]

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