Article View: comp.lang.c.moderated
Article #2517Re: Pointers to functions
From: Richard A. O'Keefe
Date: Fri, 05 Apr 1996 00:50
Date: Fri, 05 Apr 1996 00:50
31 lines
1527 bytes
1527 bytes
Lloyd Hopkins <Lloyd@bomber.demon.co.uk> writes:
>I am having some difficulty with some of the examples in 5.12. The first
>few are straight forward enough, but (for example):
>char (*(*x[3])())[5]
>is pretty confusing to figure!
There is a free program available on the net called "cdecl".
g% cdecl
Type `help' or `?' for help
cdecl> explain char (*(*x[3])())[5]
declare x as array 3 of pointer to
function returning pointer to array 5 of char
cdecl> quit
It's very useful for reading other people's code.
Weird declarations like that are seldom useful.
More usual would be
typedef char (*five_char_ptr)[5];
typedef five_char_ptr (*five_char_function_ptr)();
five_char_function_ptr x[3];
I can live with two type constructors (*, [], or ()) in a declaration,
but three is a bit too much.
--
Result of state election = 50% Victorians didn't get MP of their choice.
Richard A. O'Keefe; http://www.cs.rmit.edu.au/~ok; RMIT Comp.Sci.
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Path: arc1-ca.pugleaf.net!solon.com!not-for-mail From: ok@cs.rmit.edu.au (Richard A. O'Keefe) Newsgroups: comp.lang.c.moderated Subject: Re: Pointers to functions Date: 4 Apr 1996 18:50:48 -0600 Organization: Comp Sci, RMIT, Melbourne, Australia Sender: clc@solutions.solon.com Approved: clc@solutions.solon.com Message-ID: <4k1qp8$5nn@solutions.solon.com> References: <4jol6u$1sn@solutions.solon.com> <4jq1ef$a2u@solutions.solon.com> <4jttba$3gt@solutions.solon.com> NNTP-Posting-Host: solutions.solon.com X-Newsreader: NN version 6.5.0 #0 (NOV)