process argument list
Description
x1 ! X : x2
If x1 is a function or procedure, x1 ! X produces the outcome of calling x1 with the arguments in the list or record X.
If x1 is an integer, x1 ! X produces X[x1] but fails if x1 is out of range of X.
Parameters
- x1
- function or integer
- X
- list or record
- returns
- function outcome or X[x1] or fail
Errors
106 |
x not procedure or integer |
108 |
X is not list or record |
See Also