CODEWITHSUNDEEP
c++g++c-preprocessor
ziyiyituxe
ziyiyituxe

Reputation: 197

Use diferent class depend on g++ flag

I want my C++ program to work in one of two modes: normal/debug. For now I've got some class A, which I want to replace with class N when normal mode or with class D when debug mode. What's the clean way of doing it? I was thinking about sth like:

// classA.h
#ifdef DEBUG
#include "./classD.h"
#else
#include "./classN.h"
#endif

But how can I easily make this class "compatible" with previus class A interface?

Upvotes: 0

Views: 97

Answers (1)

463035818_is_not_an_ai
463035818_is_not_an_ai

Reputation: 122657

I cannot help myself but to mention that what you want to do is a little fishy. Unless A is specifically for debugging I wouldn't want it to be a different class in debug / release builds. As mentioned in a comment, you typically want to debug the code that you later release, not some different code. This sounds like a recipe for confusion.

Having said that, you can make A an alias to either of the two:

// classA.h
#ifdef DEBUG
#include "./classD.h"
using A = D;
#else
#include "./classN.h"
using A = N;
#endif

Upvotes: 2

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