What is a macro used for in programming?

A macro is a powerful tool in programming that is primarily used to automate repetitive processes. It allows a programmer to define a set of instructions that can be reused multiple times throughout the code without the need to rewrite the same code segments. This not only saves time and reduces errors but also enhances the readability and maintainability of the code.

For instance, in many programming environments, especially those involving text or spreadsheet manipulation, macros can record a sequence of actions taken by the user, which can then be played back on demand. This is particularly useful for tasks that require the same series of operations to be applied repeatedly, such as formatting text or performing calculations on large datasets.

In contrast, compiling code refers to the transformation of source code into executable code, which is a different function not associated with macros. Debugging a program involves identifying and resolving errors or bugs in the code, while encrypting data pertains to the process of encoding information to protect it from unauthorized access. These activities do not fall under the scope of what a macro accomplishes in programming.