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  14    <H1>[IRCServices Coding] GCC3</H1>
  15     <B>Mark Hetherington</B>
  16     <A HREF="mailto:ircservices-coding%40ircservices.za.net?Subject=%5BIRCServices%20Coding%5D%20GCC3&In-Reply-To="
  17        TITLE="[IRCServices Coding] GCC3">mark at ctcp.net
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  19     <I>Sun Feb 24 14:32:24 PST 2002</I>
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  34 <PRE>&gt;<i> Finny Merrill wrote:
  35 </I>&gt;<i> However, it does give two warnings: it says the multi-line string
  36 </I>&gt;<i> literal in init.c is depreciated (that's true, it's not iso OR posix
  37 </I>&gt;<i> C) and it says that in do_dropnick, ngi might be used uninitialized
  38 </I>&gt;<i> (the syntax raises my hackles a bit, but indeed it is always initial-
  39 </I>&gt;<i> ized when used)
  40 </I>
  41 IIRC the warning about &quot;ngi might be used uninitialised&quot; is not merely a
  42 GCC 3.0 error since I have been seeing it for a while.
  43
  44 It occurs because of the way the code initialises ngi within an if
  45 condition where another condition that must be true is also involved.
  46
  47 Personally, I would fix such a warning since it would be a legitimate
  48 operation for the compiler to generate code that could skip the
  49 initialisation of ngi.
  50
  51 The particular line in question is:
  52
  53 if (ni-&gt;nickgroup &amp;&amp; !(ngi = get_ngi(ni)))
  54
  55 Should ni-&gt;nickgroup be zero, the compiler could have output code which
  56 would skip the initialisation of ngi since it would not pass an AND
  57 operation leading to a later illegal acces to ngi.
  58
  59 --
  60 Mark.
  61
  62
  63
  64 </PRE>
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