Ethereal-dev: Re: [Ethereal-dev] [Patch] iostat win32 build

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

Date Index Thread Index Other Months All Mailing Lists
Date Prev Date Next Thread Prev Thread Next
From: Guy Harris <guy@xxxxxxxxxx>
Date: Mon, 2 Dec 2002 14:44:57 -0800
On Mon, Dec 02, 2002 at 02:20:33PM -0600, Esh, Andrew wrote:
> BTW: In the syntax below, it is also legal to have multiple cases stacked
> above a single statement, so "case {constant-expression} :" is legal, if it
> is followed by another case. I'm not sure if that's standard C,

The syntax in question was copied directly from the ANSI C standard, and
a {statement} is (from 3.6 "Statements"):

	{statement}:
	     {labeled-statement}
	     {compound-statement}
	     {expression-statement}
	     {selection-statement}
	     {iteration-statement}
	     {jump-statement}

so you can stack labels (whether they're case labels, "default" labels,
or goto labels), as long as there's a statement after the last of the
labels, as a {labeled-statement} is a {statement} and thus you can have,
as a {labeled-statement}:

	case {constant-expression} : {labeled-statement}

and thus

	case {constant-expression} : case {constant-expression}: {labeled-statement}

and so on.