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From: dwebster@cs.arizona.edu (Dave E. Webster)
Newsgroups: comp.lang.c
Subject: Re: A question on Function declaration
Keywords: pointer function integer
Message-ID: <851@caslon.cs.arizona.edu>
Date: 13 Feb 91 05:11:13 GMT
References: <5806@agate.UUCP>
Organization: U of Arizona CS Dept, Tucson
Lines: 40

In article <5806@agate.UUCP> joshi@motcid.UUCP (Abhay B. Joshi) writes:
>I would like to  declare a function which returns a pointer to a function
>(that returns an integer). I have been unable to strike at the correct
>syntax of such a declaration. 
>
>I tried the following (among others):
>	((int *)()) func() ;
>
>Doesn't work.

   Abhay:  You might try the following:

   int (*func(int,int)) (float)  /* This assumes ANSI C prototypes */
   {
     ...
   }

   This defines "func" as a "function with two integer parameters which
   returns a pointer to a function with a single float parameter which
   returns an integer."  You will need to modify the parameters to suit
   your particular needs, of course.

   Note that the parenthesis around the main function prototype are not
   optional since the `()' have a higher binding precedence than the `*'.

   This is where c becomes extremely powerful (read EXTREMELY DANGEROUS).

   Dave   8-}.


Newsgroups: comp.lang.c
Subject: Re: A question on Function declaration
Summary: 
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References: <5806@agate.UUCP>
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Organization: U of Arizona CS Dept, Tucson
Keywords: pointer function integer