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7.23.2.1 Explicit Converter Functions

• - <type> ‘__<type-name>’(object o);

  is the data boxed by o

  The functions do not perform any data conversion, not even between intrinsic numerical types. ‘cardinal’, ‘integer’ and ‘real’ may be used instead ‘__cardinal’, ‘__integer’ and ‘__real’ when implicit type conversions are required.

  See Mathematical And Text Generalities Functions.

• - object ‘__object’(object o);

  is o

  The function is not a true converter by itself, but the implicit converters allows it to be used to box data of any type.