- 2.2.5.1. -
Table of Contents
2. TMT Pascal Language Description
2.2. Pascal Language Structure
2.2.5. Constants
2.2.5.1. Integer and Real Number Constants
2.2.5.1. Integer and Real Number
Constants
Integer constants are values that can be represented in either decimal
(base 10) or hexadecimal (base 16). A decimal number is a string of digits
(0-9) that may be preceded with a plus or minus sign. A hexadecimal
number is preceded by a dollar sign ($) followed by a string of digits and
the characters A through F. The following are valid integer numbers:
100 -255 100500 $FE $ABCD
Real constants are numbers that contain an integer portion, a fractional
portion, and an exponent. Use real constants when the fraction of a number
is necessary. The syntax for real constants is as follows:
[+|-] digits [.digits] [E [+|-] digits]
The letter E represents the exponent part of the real number.
Exponents are powers of ten. Both integer and real constants may not contain
space characters. The following are valid real constants:
1.0 -205.13 9019.31E100 40.71E-10
The current version of TMT Pascal
compiler does not provide constants of Extended type.
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