C++ Auto Keyword Explained: Purpose & Benefits

The purpose of the “auto” keyword in C++ is to automatically deduce the data type of a variable. This allows the compiler to infer the data type based on the initialization expression of the variable, simplifying code writing and improving code readability. By using the “auto” keyword, it is possible to avoid repeatedly writing out the data type of a variable, particularly when the data type is complex or difficult to determine, the “auto” keyword can effectively simplify code writing.