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The following basic types are predeclared and denoted by standard identifiers. They have associated operators. Also, some of the standard function procedures apply to basic types, too.
Type | Size | Values |
BOOLEAN | 1 | truth values TRUE and FALSE |
CHAR | 2 | UNICODE characters, incl. ASCII set |
SHORTINT | 1 | -128 .. 127 |
INTEGER | 2 | -32768 .. 32767 |
LONGINT | 4 | -2147483648 .. 2147483647 |
REAL | 4 | single precision IEEE 754 numbers |
LONGREAL | 8 | double precision IEEE 754 numbers |
SET | 4 | set of integers between 0 and 31 |
The integer and real types are called numeric types. They form a hierarchy: Each larger type includes the values of the smaller types:
LONGREAL > REAL > LONGINT > INTEGER > SHORTINT
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Canterbury Oberon-2 for Java (Last documentation update
Feb 8, 2000)
Copyright © 1998 Mill Hill &
Canterbury Corporation, Ltd. All rights reserved
Please send any comments or corrections to
mhc@webcom.com