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From: subbarao@phoenix.Princeton.EDU (Kartik Subbarao)
Newsgroups: comp.sys.sgi
Subject: Re: C Bug (he meekly asks) ?
Message-ID: <7578@idunno.Princeton.EDU>
Date: 27 Mar 91 15:25:17 GMT
References: <6627@oasys.dt.navy.mil> <1991Mar26.235622.20057@colorado.edu>
Sender: news@idunno.Princeton.EDU
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In article <1991Mar26.235622.20057@colorado.edu> rainer@boulder.Colorado.EDU (Rainer Malzbender) writes:
>I inadvertently typed "case_3:" instead of "case 3:" in a 'switch'
>statement. Now I'm certainly no guru on the arcane features of the
>C language, but shouldn't this be illegal and at least cause a
>compiler error? My program compiled and ran fine. As far as I can tell
>from the .s output (I don't grok R3000 assembler) it just trashed
>the whole clause.

Realize that ':' also stands for a label in C, and so your case_3:
statement was treated as a label, where later in the program you could
possibly say "goto case_3". Certainly not what you intended, but nevertheless
quite legal.

				-Kartik
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