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	<title>Gwynne&#039;s Blog &#187; gcc</title>
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	<link>http://blog.darkrainfall.org</link>
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		<title>Floating-point makes my brain melt</title>
		<link>http://blog.darkrainfall.org/floating-point-makes-my-brain-melt/</link>
		<comments>http://blog.darkrainfall.org/floating-point-makes-my-brain-melt/#comments</comments>
		<pubDate>Thu, 29 Apr 2010 19:52:56 +0000</pubDate>
		<dc:creator>Gwynne Raskind</dc:creator>
				<category><![CDATA[Programming]]></category>
		<category><![CDATA[assembly]]></category>
		<category><![CDATA[c]]></category>
		<category><![CDATA[clang]]></category>
		<category><![CDATA[code mistakes]]></category>
		<category><![CDATA[gcc]]></category>
		<category><![CDATA[optimization]]></category>
		<category><![CDATA[technobabble]]></category>

		<guid isPermaLink="false">http://blog.darkrainfall.org/?p=369</guid>
		<description><![CDATA[Sometimes it&#8217;s better to do the obvious than try to be &#8220;correct&#8221;. How would you check if a floating-point variable x was zero? Common sense says x == 0.0 should work, right? But the compiler gets cranky about floating-point compares, &#8230; <a href="http://blog.darkrainfall.org/floating-point-makes-my-brain-melt/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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		<title>Missions of the Reliant: Hope is fragile</title>
		<link>http://blog.darkrainfall.org/missions-of-the-reliant-hope-is-fragile/</link>
		<comments>http://blog.darkrainfall.org/missions-of-the-reliant-hope-is-fragile/#comments</comments>
		<pubDate>Mon, 15 Feb 2010 08:17:25 +0000</pubDate>
		<dc:creator>Gwynne Raskind</dc:creator>
				<category><![CDATA[Missions of the Reliant]]></category>
		<category><![CDATA[Programming]]></category>
		<category><![CDATA[assembly]]></category>
		<category><![CDATA[blocks]]></category>
		<category><![CDATA[c]]></category>
		<category><![CDATA[clang]]></category>
		<category><![CDATA[Cocoa]]></category>
		<category><![CDATA[gcc]]></category>
		<category><![CDATA[GraphicConverter]]></category>
		<category><![CDATA[Mac Toolbox]]></category>
		<category><![CDATA[objective-c]]></category>
		<category><![CDATA[OpenGL]]></category>
		<category><![CDATA[PLBlocks]]></category>
		<category><![CDATA[roleplay]]></category>
		<category><![CDATA[SheepShaver]]></category>
		<category><![CDATA[Snow Leopard]]></category>
		<category><![CDATA[technobabble]]></category>
		<category><![CDATA[Xcode]]></category>

		<guid isPermaLink="false">http://blog.darkrainfall.org/?p=271</guid>
		<description><![CDATA[This time, the Admiral doesn&#8217;t even wait for Gwynne to salute. Admiral: I don&#8217;t want to hear one word from you, Commander! Leave that report and go, and be glad I don&#8217;t bust you back to Private! On the verge &#8230; <a href="http://blog.darkrainfall.org/missions-of-the-reliant-hope-is-fragile/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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		<title>Pointless optimization</title>
		<link>http://blog.darkrainfall.org/pointless-optimization/</link>
		<comments>http://blog.darkrainfall.org/pointless-optimization/#comments</comments>
		<pubDate>Mon, 25 Jan 2010 17:45:34 +0000</pubDate>
		<dc:creator>Gwynne Raskind</dc:creator>
				<category><![CDATA[Programming]]></category>
		<category><![CDATA[assembly]]></category>
		<category><![CDATA[c]]></category>
		<category><![CDATA[gcc]]></category>
		<category><![CDATA[objective-c]]></category>
		<category><![CDATA[optimization]]></category>
		<category><![CDATA[parity]]></category>

		<guid isPermaLink="false">http://blog.darkrainfall.org/?p=55</guid>
		<description><![CDATA[So I was looking at the macro used to calculate 16-bit parity in pure C without branching: It uses GCC&#8217;s handy compound statement syntax, but otherwise it&#8217;s plain old C. Let&#8217;s look at the 64-bit ASM this compiles to at &#8230; <a href="http://blog.darkrainfall.org/pointless-optimization/">Continue reading <span class="meta-nav">&#8594;</span></a>]]></description>
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