Standard type

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There are certain data types which are defined by a Pascal compiler as standard data types. These types are generally the atomic data structures used by a Pascal program, as variables and constants that would be made up of them can't be created from something else without these types. The typical standard types include:

• boolean - true or false
• char - Character
• real - Numbers with decimal points or exponents
• integer - Whole numbers
• set - A group of values

Additional standard types which are defined by more advanced compilers include:

• object - used to declare object types
• string - used to declare strings which are handled automatically by the compiler and run-time library.