Void is a modifier keyword that is used in place of the return type in a function declaration to indicate that the function does not have a return type, that is to say it does not return any value, or in other words it is not actually a function but a procedure.
In Modula-2 procedures are declared like functions but simply omit the return type.
A C procedure declaration ...
void foobar ( baz bam );
becomes
PROCEDURE foobar ( bam : baz );
in Modula-2.
On Wed, 25 Mar 2020 at 12:45, Hưng Hưng <address@hidden> wrote:
I mean C void type, not void pointer. I can't found anywhere mention it.