From: Erik Max Francis <max AT alcyone DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: passing a structure??
Date: Wed, 12 Aug 1998 19:13:36 -0700
Organization: Alcyone Systems
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Bjorn Hansen wrote:

> Is it possible to pass a structure to a function ?

Certainly.  Note, though, that a function argument that is a structure
is copied on the stack, which can cause problems if the contents of the
structure reference dynamic data and the local members need to be kept
in a consistent state with that data.

Also, since C is pass-by-value, the entire structure must be pushed
around on the stack.  If the structures aren't really small, then this
can waste time.

> If so how would I
> protorype it?

struct S { ... };

extern int f(struct S s); /* returns int and takes a struct S */


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