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- 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++?
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 preprocessor looks though the source files for preprocessor directives like #define or #include and then performs simple operations with them
- Why use #define instead of a variable - Stack Overflow
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
- Defining and using a variable in batch file - Stack Overflow
The space before the = is interpreted as part of the name, and the space after it (as well as the quotation marks) are interpreted as part of the value So the variable you’ve created can be referenced with %location % If that’s not what you want, remove the extra space (s) in the definition
- What is the difference between #define and const? [duplicate]
The #define directive is a preprocessor directive; the preprocessor replaces those macros by their body before the compiler even sees it Think of it as an automatic search and replace of your source code A const variable declaration declares an actual variable in the language, which you can use well, like a real variable: take its address, pass it around, use it, cast convert it, etc Oh
- Array format for #define (C preprocessor) - Stack Overflow
Probably a naïve question - I used to program 20 years ago and haven't coded much since My memory of how the C preprocessor works has atrophied significantly since then I am writing a very sim
- c# - How do you use #define? - Stack Overflow
The main use-case for #define is for conditional compilation (where it can be very useful) You're correct that using #define for symbols and (please don't do it) macros, is not a good use-case
- c# - Define #define, including some examples - Stack Overflow
1 #define is a special "before compile" directive in C# (it derives from the old C preprocessor directives) that defines a preprocessor symbol Coupled with #if, depending on what symbols are defined, the various code will be effectively commented out Because of this, code in non-selected paths doesn't even need to be in a compilable state!
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