Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!ames!xanth!nic.MR.NET!umn-d-ub!umn-cs!clark
From: clark@umn-cs.CS.UMN.EDU (Robert P. Clark)
Newsgroups: comp.lang.c
Subject: function casting
Message-ID: <12481@umn-cs.CS.UMN.EDU>
Date: 29 Apr 89 22:55:23 GMT
Organization: University of Minnesota, Minneapolis
Lines: 30


How do I cast something to a pointer to a function that returns
an integer?  I'm trying to save the old function, so that I can
call my own function and then chain to the original.


One of my (failed) attempts has been


main()
{
  int  (*f)();
  char *foo();


    f = ((*int)())foo();  /*  foo returns char*, but I know this is  */
                          /*  really an address of a function        */
}




                     Bob Clark        clark@umn-cs.cs.umn.edu

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    ~                                                       ~
    ~          Never underestimate the bandwidth of         ~
    ~          a station wagon  - Andrew Tannenbaum         ~
    ~                                                       ~
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~