Re: Does gcc 2.0 support computed gotos?

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Article #53271

#53271

From: Toshi Morita
Date: Sun, 23 Feb 1992 08:39

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jhostet@slayer.mit.edu (Mat Hostetter) writes:

>I saw in the GNU status report that "C has been extended to support
>nested functions, nonlocal gotos, and taking the address of a label."
>
>Will there be any way to have an array of label-pointers and dispatch to
the
>one I want?  (eg, "goto label_array[x]".)  (I basically need a switch that
does
>no bounds checking, for a really speed-intensive loop.)

Maybe I'm missing something, but doesn't stock C handle this?

Something like this:

void (*func[32])(void);

func[0] = func0;
func[1] = func1;
func[2] = func2;

...

(*func[x])();

Toshi Morita
tm@well.sf.ca.us

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From: tm@well.sf.ca.us (Toshi Morita)
Newsgroups: gnu.gcc.help
Subject: Re: Does gcc 2.0 support computed gotos?
Message-ID: <30150@well.sf.ca.us>
Date: 23 Feb 92 08:39:27 GMT
References: <1992Feb21.023817.17703@athena.mit.edu> <1992Feb21.033356.18370@athena.mit.edu>
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