Third-class
In computer science, values may be of first-class, second-class, or third-class:
| assignable | passable as
parameter | passable as
return value |
| First-class | yes | yes | yes |
| Second-class | yes | yes | no |
| Third-class | yes | no | no |
In many programming languages, labels are third-class values while numerical values are first-class values. A few languages use this kind of exact distinction.
|
