Question

1. What are Macros or define macros​

Answer 1

Answer:

A macro in computer science is a rule or pattern that specifies how a certain input should be mapped to a replacement output. Applying a macro to an input is macro expansion. The input and output may be a sequence of lexical tokens or characters, or a syntax tree.

Answer 2

Explanation:

A macro in computer science is a rule or pattern that specifies how a certain input should be mapped to a replacement output. Applying a macro to an input is macro expansion. The input and output may be a sequence of lexical tokens or characters, or a syntax tree

Example

A macro is a fragment of code that is given a name. You can define a macro in C using the #define preprocessor directive. Here's an example. Here, when we use c in our program, it is replaced with 299792458 .