Why do most C developers use define instead of const? #define simply substitutes a name with its value Furthermore, a #define 'd constant may be used in the preprocessor: you can use it with #ifdef to do conditional compilation based on its value, or use the stringizing operator # to get a string with its value
How do you declare string constants in C? - Stack Overflow I know it's quite idiomatic, or good style at least, in C to declare numeric constants as enums instead of #defineing them * bad style * #define MAXLINE 1024 * good better style * enum {
What is the difference between #define and const? [duplicate] 1 DEFINE is a preprocessor instruction (for example, #define x 5) The compiler takes this value and inserts it wherever you are calling x in the program and generate the object file "Define" constants don't create a symbol entry in symbol table If you wanted to debug the program, you would not find x
c - static const vs #define vs enum - Stack Overflow Most of the time, you'll have no choice but to use #define in C And don't forget another alternative, that produces true constants in C - enum In C++ const objects are true constants, so in C++ it is almost always better to prefer the const variant (no need for explicit static in C++ though)
constants - Defining const values in C - Stack Overflow The rule I follow is to only declare things in H files and define them in C files You can declare and define in a single C file, assuming it will only be used in that file By declaration, I mean notify the compiler of its existence but don't allocate space for it This includes #define, typedef, extern int x, and so on Definitions assign values to declarations and allocate space for them
How to define constants in Visual C# like #define in C? In C you can define constants like this #define NUMBER 9 so that wherever NUMBER appears in the program it is replaced with 9 But Visual C# doesn't do this How is it done?
c++ - static const vs. #define - Stack Overflow 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?
Defining global constants in C - Stack Overflow How can I define a global constant in C? I was told to do some thing like this in header h const u32 g_my_const; in code c #include "header h" const u32 g_my_const= 10U; But I get a compilation