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
Lines:	29
Message-ID:	<35D24BD0.D71EFDC@alcyone.com>
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NNTP-Posting-Host:	charmaine.alcyone.com
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

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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