220 2931 <6ab52344-d0a5-4bd5-82cc-28bd0428734c@isocpp.org> article
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Subject: Re: minimal enum class improvements
Date: Mon, 18 Feb 2013 06:06:42 -0800 (PST)
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   - Flag enums

enum flags X{ foo, bar, baz };
X x = foo | bar;
if(x & baz)
    x |= foo;


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<ul><li>Flag enums</li></ul><p></p><div class=3D"prettyprint" style=3D"back=
ground-color: rgb(250, 250, 250); border-color: rgb(187, 187, 187); border-=
style: solid; border-width: 1px; word-wrap: break-word;"><code class=3D"pre=
ttyprint"><div class=3D"subprettyprint"><span style=3D"color: #008;" class=
=3D"styled-by-prettify">enum</span><span style=3D"color: #000;" class=3D"st=
yled-by-prettify"> flags X</span><span style=3D"color: #660;" class=3D"styl=
ed-by-prettify">{</span><span style=3D"color: #000;" class=3D"styled-by-pre=
ttify"> foo</span><span style=3D"color: #660;" class=3D"styled-by-prettify"=
>,</span><span style=3D"color: #000;" class=3D"styled-by-prettify"> bar</sp=
an><span style=3D"color: #660;" class=3D"styled-by-prettify">,</span><span =
style=3D"color: #000;" class=3D"styled-by-prettify"> baz </span><span style=
=3D"color: #660;" class=3D"styled-by-prettify">};</span><span style=3D"colo=
r: #000;" class=3D"styled-by-prettify"><br>X x </span><span style=3D"color:=
 #660;" class=3D"styled-by-prettify">=3D</span><span style=3D"color: #000;"=
 class=3D"styled-by-prettify"> foo </span><span style=3D"color: #660;" clas=
s=3D"styled-by-prettify">|</span><span style=3D"color: #000;" class=3D"styl=
ed-by-prettify"> bar</span><span style=3D"color: #660;" class=3D"styled-by-=
prettify">;</span><span style=3D"color: #000;" class=3D"styled-by-prettify"=
><br></span><span style=3D"color: #008;" class=3D"styled-by-prettify">if</s=
pan><span style=3D"color: #660;" class=3D"styled-by-prettify">(</span><span=
 style=3D"color: #000;" class=3D"styled-by-prettify">x </span><span style=
=3D"color: #660;" class=3D"styled-by-prettify">&amp;</span><span style=3D"c=
olor: #000;" class=3D"styled-by-prettify"> baz</span><span style=3D"color: =
#660;" class=3D"styled-by-prettify">)</span><span style=3D"color: #000;" cl=
ass=3D"styled-by-prettify"><br>&nbsp; &nbsp; x </span><span style=3D"color:=
 #660;" class=3D"styled-by-prettify">|=3D</span><span style=3D"color: #000;=
" class=3D"styled-by-prettify"> foo</span><span style=3D"color: #660;" clas=
s=3D"styled-by-prettify">;</span><span style=3D"color: #000;" class=3D"styl=
ed-by-prettify"><br></span></div></code></div><br><br><p></p>

<p></p>

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