 |  |  | How to select the object kind |
How to select the object kind
To get the information about the kind of an object, you have the
routine s_o_k(), look at the following part of the pseudostandard
routine print:
...
INT print(a) OP a;
...
switch(s_o_k(a)) {
case INTEGER: return(print_integer(a));
...
}
...
The complete description of this selection of the object's kind is:
- The NAME is s_o_k, which abbreviates
select_object_kind.
- The SYNOPSIS reads as follows:
OBJECTKIND s_o_k(OP object)
- Its DESCRIPTION is: As OP is a pointer, there is first a check,
whether it is the NULL pointer, then it
returns the kind of the object
- RETURN: The returnvalue is the kind, or in the case of
an error the value (OBJECTKIND)ERROR. You have to cast
because in the normal case ERROR is of type INT.
- The corresponding MACRO: There is a macro S_O_K
without a check
harald.fripertinger@kfunigraz.ac.at,
last changed: November 19, 2001
| | | How to select the object kind |