Flag (programming)

In programming, a "flag" generally refers to a variable or a specific bit that is used to indicate a condition or state within a program. Flags are commonly used in various contexts, such as: 1. **Boolean Flags**: These are typically boolean variables (true/false) that signal whether a certain condition has been met or whether a specific feature is enabled. For example, a `debug` flag may indicate if debug mode is on, which can alter the behavior of a program.