⎕DR DR

Data Representation (Monadic) R←⎕DR Y

Monadic ⎕DR returns the type of its argument Y. The result R is an integer scalar containing one of the following values. Note that the internal representation and data types for character data differ between the Unicode and Classic Editions.

Table 1: Unicode Edition

Value	Data Type
11	1 bit Boolean
80	8 bits character
83	8 bits signed integer
160	16 bits character
163	16 bits signed integer
320	32 bits character
323	32 bits signed integer
326	Pointer (32-bit or 64-bit as appropriate)
645	64 bits Floating
1287	128 bits Decimal
1289	128 bits Complex

Table 2: Classic Edition

Value	Data Type
11	1 bit Boolean
82	8 bits character
83	8 bits signed integer
163	16 bits signed integer
323	32 bits signed integer
326	Pointer (32-bit or 64-bit as appropriate)
645	64 bits Floating
1287	128 bits Decimal
1289	128 bits Complex