Boolean: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| (3 intermediate revisions by the same user not shown) | |||
| Line 14: | Line 14: | ||
|} | |} | ||
===Presence=== | ===Presence=== | ||
For some functionalities, the presence of an attribute is used, rather than the actual value of that attribute. This is referred to as a "boolean by presence". In these cases, if the attribute is not present, it | For some functionalities, the presence of an attribute is used, rather than the actual value of that attribute. This is referred to as a "boolean by presence". In these cases, if the attribute is not present, it is considered a logical "False". If the attribute is present, it is considered a logical "True". | ||
{{article end | {{article end | ||
|seealso= | |seealso= | ||
* [[ | * [[Attribute]] | ||
}} | }} | ||
[[Category:unit]] | [[Category:unit]] | ||
Latest revision as of 08:15, 6 July 2026
A boolean is a binary value, indicating either a "true" or a "false".
In general, only a value of 0 or 1 is allowed. Any other value may cause undefined behavior, though as a rule of thumb any positive value is interpreted as "true".
| Value | Meaning |
|---|---|
| 0 | False (No) |
| 1 | True (Yes) |
Presence
For some functionalities, the presence of an attribute is used, rather than the actual value of that attribute. This is referred to as a "boolean by presence". In these cases, if the attribute is not present, it is considered a logical "False". If the attribute is present, it is considered a logical "True".