Difference between revisions of "Constant"
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== See also == | == See also == | ||
* [[Const|<syntaxhighlight lang="pascal" inline>const</syntaxhighlight>]] | * [[Const|<syntaxhighlight lang="pascal" inline>const</syntaxhighlight>]] | ||
| − | * [[Constants]] | + | * [[Basic Pascal Tutorial/Chapter 1/Constants|Constants]] |
* [[Class constants]] | * [[Class constants]] | ||
Latest revision as of 21:53, 23 February 2023
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A constant is a variable that does not change, it has a final value.
Constants are defined in the const section of a Free Pascal program. When a symbol is defined as constant, the Free Pascal compiler can often do some optimizations to make the output code faster or smaller.
Some special Free Pascal constants are:
Logical truth values
data type limits
The mathematical value π is realized as a function in system.pi.
