Most compiler editors create two 'make' files or projects for each module setup. They are debug or developer version and release version. Developer/debug version by default defines a macro named _DEBUG or DEBUG. Release version does not have this macro defined. Thus we can use the preprocessor directive #ifdef or if defined to check if it is a release version.

Code:
#ifdef DEBUG
ASSERT(mem_pointer == NULL);
DBG_PRINT("Allocated memory pointer %p",  mem_pointer);
#endif

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