Difference between revisions of "Template:Object Types"
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| Heap (Only) | | Heap (Only) | ||
|- | |- | ||
| − | | :Setting fields to zero on allocation | + | | |
| + | :Setting fields to zero on allocation | ||
| + | | Managed Types only | ||
| Managed Types only | | Managed Types only | ||
| Managed Types only | | Managed Types only | ||
| − | |||
| All fields | | All fields | ||
| + | |- | ||
| + | | | ||
| + | :Default() function returns a constant with | ||
| + | | all fields zeros | ||
| + | | all fields zeros | ||
| + | | all fields zeros | ||
| + | | returns nil | ||
|- | |- | ||
| Operator overload (global) | | Operator overload (global) | ||
Latest revision as of 20:50, 18 February 2021
| Feature | Record | Adv Record | Object | Class |
|---|---|---|---|---|
| Encapsulation (combining data and methods + hiding visibility) | No | Yes | Yes | Yes |
| Inheritance | No | No | Yes | Yes |
| Class constructor and destructor | No | Yes | Yes | Yes |
| Polymorphism (virtual methods) | No | No | Yes | Yes |
| Memory allocation | Stack | Stack | Stack | Heap (Only) |
|
Managed Types only | Managed Types only | Managed Types only | All fields |
|
all fields zeros | all fields zeros | all fields zeros | returns nil |
| Operator overload (global) | No | Yes | Yes | Yes |
| Operator overload (in type only) | No | Yes | No | No |
| Type helpers | No | Yes | No | Yes |
| Virtual constructors, class reference | No | No | No | Yes |
| Variant part (case) as c/c++ union | Yes | Yes | No | No |
| Bitpacked (really packing) | Yes | Yes | No | No |
Modified from https://forum.lazarus.freepascal.org/index.php/topic,30686.30.html (original author: ASerge).
