Comp: what changed
Revision 0 to 1. Removed lines have a minus sign; added lines have a plus sign.
Title: Comp
| Old | New | Line | |
|---|---|---|---|
| 1 | + | Value range: -2E64 + 1 .. 2E63-1. | |
| 2 | + | ||
| 3 | + | Accuracy: 19 positions. | |
| 4 | + | ||
| 5 | + | Memory occupancy: 8 bytes or 64 bits. | |
| 6 | + | ||
| 7 | + | Property: A data field of data type Comp accepts floating point values or integers, signed or unsigned. Any other value leads to a compilation error, so the program will not be created. | |
| 8 | + | ||
| 9 | + | Important: The Comp type is only supported by 80x86 processors (this type is therefore not portable). | |
| 10 | + | ||
| 11 | + | Declaration of a data field of type Comp: | |
| 12 | + | ||
| 13 | + | ``` pascal | |
| 14 | + | Var | |
| 15 | + | c : Comp; | |
| 16 | + | ``` | |
| 17 | + | ||
| 18 | + | Example of correct assignments: | |
| 19 | + | ||
| 20 | + | ``` pascal | |
| 21 | + | c := -123.45678; | |
| 22 | + | c := 0; | |
| 23 | + | c := 123.45678; | |
| 24 | + | ``` | |
| 25 | + | ||
| 26 | + | Example of incorrect assignments: | |
| 27 | + | ||
| 28 | + | ``` pascal | |
| 29 | + | c := '-123.45678'; | |
| 30 | + | c := '0'; | |
| 31 | + | c := '123.45678'; | |
| 32 | + | ``` | |
| 33 | + | ||
| 34 | + | These last examples try to affect non-integer literal values (string) which require an explicit conversion. | |
| 35 | + | ||
| 36 | + | --- | |
| 37 | + | *From the Free Pascal wiki, page "Comp", as it stood on 2023-12-22 after a change by Alextpp, 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).* |
