It’s a simple question, but why would someone use #define to define constants?
What’s the difference between
#define sum 1 and const int sum = 1;
It’s a simple question, but why would someone use #define to define constants? What’s
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It’s a simple question, but why would someone use #define to define constants?
What’s the difference between
#define sum 1 and const int sum = 1;
#definehas many different applications, but your question seems to be about one specific application: defining named constants.In C++ there’s rarely a reason to use
#defineto define named constants.#defineis normally widely used in C code, since C language is significantly different from C++ when it comes to defining constants. In short,const intobjects are not constants in C, which means that in C the primary way to define a true constant is to use#define. (Also, forintconstants one can use enums).