Dispose: what changed
Revision 0 to 1. Removed lines have a minus sign; added lines have a plus sign.
Title: Dispose
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| 1 | + | Back to [[Reserved words]]. | |
| 2 | + | ||
| 3 | + | The reserved word **dispose** belongs to object-oriented programming. | |
| 4 | + | ||
| 5 | + | The reserved word **dispose** releases the memory by reducing the reference counter to the memory object by 1. If the reference counter of an object is 0, the memory object is released. | |
| 6 | + | ||
| 7 | + | Example: | |
| 8 | + | ||
| 9 | + | ``` pascal | |
| 10 | + | var | |
| 11 | + | intI: ^ Integer; | |
| 12 | + | ||
| 13 | + | begin | |
| 14 | + | ... | |
| 15 | + | if assigned (intI) then ... // Checks whether an address has been assigned to intI | |
| 16 | + | ... | |
| 17 | + | new (intI); // Assigns a valid address to intI | |
| 18 | + | ... | |
| 19 | + | dispose (intI); // Releases the address | |
| 20 | + | ... | |
| 21 | + | ``` | |
| 22 | + | ||
| 23 | + | --- | |
| 24 | + | *From the Free Pascal wiki, page "Dispose", as it stood on 2020-02-13 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).* |