Is it possible to use a if statement inside #define?
It is possible to use anything in #define - you just need to be careful about the preprocessor. See @Saeed's answer below.
What is the purpose of the #define directive in C++?
Nov 27, 2015 · 0 in C or C++ #define allows you to create preprocessor Macros. In the normal C or C++ build process the first thing that happens is that the PreProcessor runs, the …
Why use #define instead of a variable - Stack Overflow
Mar 28, 2018 · What is the point of #define in C++? I've only seen examples where it's used in place of a "magic number" but I don't see the point in just giving that value to a variable instead.
c++ - 'static const' vs. '#define' - Stack Overflow
Oct 28, 2009 · Is it better to use static const variables than #define preprocessor? Or does it maybe depend on the context? What are advantages/disadvantages for each method?
c++ - What does ## in a #define mean? - Stack Overflow
In other words, when the compiler starts building your code, no #define statements or anything like that is left. A good way to understand what the preprocessor does to your code is to get …
python - How to define a two-dimensional array? - Stack Overflow
Jul 12, 2011 · How to define a two-dimensional array? [duplicate] Asked 13 years, 11 months ago Modified 1 year, 8 months ago Viewed 3.1m times
What's the difference in practice between inline and #define?
Aug 24, 2010 · 2 Macros (created with #define) are always replaced as written, and can have double-evaluation problems. inline on the other hand, is purely advisory - the compiler is free …
c - #if defined (x) || (y) ; is this valid? - Stack Overflow
Mar 30, 2012 · During one review I came across a piece of code like the following : #if defined(x) || y What does the above statement mean ? Will the condition execute properly ?
How do I define a function with optional arguments?
How do I define a function with optional arguments? Asked 13 years, 3 months ago Modified 11 months ago Viewed 1.2m times
How can I use #if inside #define in the C preprocessor?
How can I use #if inside #define in the C preprocessor? Asked 15 years, 1 month ago Modified 3 months ago Viewed 50k times