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From: wrc@brunix.UUCP
Newsgroups: net.lang.c
Subject: void (*Problem)() = VoidFun;
Message-ID: <10339@brunix.UUCP>
Date: Fri, 19-Apr-85 22:35:56 EST
Article-I.D.: brunix.10339
Posted: Fri Apr 19 22:35:56 1985
Date-Received: Tue, 23-Apr-85 00:34:23 EST
Reply-To: wrc@brunix.UUCP (william cook)
Organization: Brown University Computer Science
Lines: 19

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Can anyone explain this problem with void?  I give a parallel example
with pointers to functions returning ints just as an example that
works.  I don't understand why you can't have a pointer to a function
returning void.

int IntFun() { puts("int"); return (5); }
void VoidFun() { puts("void"); }
int main()
{
    int (*IntPoint)(), i;
    void (*VoidPoint)();

    IntPoint = IntFun;
    VoidPoint = VoidFun;
/* cc and lint: "foo.c", line 10: operands of = have incompatible types */

    i = (*IntPoint)();
    (*VoidPoint)();
    }