From: junichirou tahara <taharajunichirou@...>
Date: 2014-06-23T16:55:12+09:00
Subject: [ruby-list:49845] Re:	rubyでfloat(32bit浮動小数点)の数値をHEX表示する手法は？

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<div dir=3D"ltr">jxtahara=E3=81=A7=E3=81=99=EF=BC=8E<div>=E3=83=9F=E3=82=B9=
=E3=82=BF=E3=82=A4=E3=83=97=E3=81=97=E3=81=A6=E3=81=84=E3=81=BE=E3=81=97=E3=
=81=9F=EF=BC=8E</div><div>-3.14=E3=81=AB=E3=81=AA=E3=81=A3=E3=81=A6=E3=81=
=84=E3=82=8B=E3=81=AE=E3=81=A7=EF=BC=8C=E8=B2=A0=E3=81=AE=E6=95=B0=E3=81=AB=
=E3=81=AA=E3=82=8B=E3=81=93=E3=81=A8=E3=81=AF=E3=81=82=E3=82=8A=E3=81=BE=E3=
=81=9B=E3=82=93=EF=BC=8E</div><div>=E3=81=99=E3=81=BF=E3=81=BE=E3=81=9B=E3=
=82=93=E3=81=A7=E3=81=97=E3=81=9F=EF=BC=8E</div><div><br></div><div>=E6=AD=
=A3=E3=81=97=E3=81=84=E3=82=B3=E3=83=BC=E3=83=89</div><div><div style=3D"fo=
nt-family:arial,sans-serif;font-size:13.63636302947998px">x=3D3.14</div>
<div style=3D"font-family:arial,sans-serif;font-size:13.63636302947998px">s=
=3D[x].pack(&quot;f&quot;)</div><div style=3D"font-family:arial,sans-serif;=
font-size:13.63636302947998px">sss=3Dsprintf(&quot;%02X%02X%02x%02X\n&quot;=
, s[0].ord,s[1].ord,s[2].ord,s[3].ord)</div>
<div style=3D"font-family:arial,sans-serif;font-size:13.63636302947998px">p=
 sss</div><div style=3D"font-family:arial,sans-serif;font-size:13.636363029=
47998px"><br></div><div style=3D"font-family:arial,sans-serif;font-size:13.=
63636302947998px">
p [sss].pack(&quot;H*&quot;).unpack(&quot;f&quot;)</div></div><div style=3D=
"font-family:arial,sans-serif;font-size:13.63636302947998px"><br></div><div=
 style=3D"font-family:arial,sans-serif;font-size:13.63636302947998px">=E3=
=81=A7=E3=81=99=EF=BC=8E</div>
<div style=3D"font-family:arial,sans-serif;font-size:13.63636302947998px"><=
br></div><div style=3D"font-family:arial,sans-serif;font-size:13.6363630294=
7998px">=E7=B5=90=E6=9E=9C=E3=81=A7=E3=81=99=EF=BC=8E</div><div style=3D"fo=
nt-family:arial,sans-serif;font-size:13.63636302947998px">
=E3=82=84=E3=81=AF=E3=82=8A=E8=AA=A4=E5=B7=AE=E3=81=AF=E5=87=BA=E3=81=BE=E3=
=81=99=E3=81=AD=EF=BC=8E</div><div style=3D"font-family:arial,sans-serif;fo=
nt-size:13.63636302947998px"><br></div><div style><font face=3D"arial, sans=
-serif">[3.140000104904175]</font><br></div></div><div class=3D"gmail_extra=
"><br><br><div class=3D"gmail_quote">
2014=E5=B9=B46=E6=9C=8823=E6=97=A5 16:51 junichirou tahara <span dir=3D"ltr=
">&lt;<a href=3D"mailto:taharajunichirou@gmail.com" target=3D"_blank">tahar=
ajunichirou@gmail.com</a>&gt;</span>:<br><blockquote class=3D"gmail_quote" =
style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr">jxtahara=E3=81=A7=E3=81=99=EF=BC=8E<div>float =3D&gt; HEX=
=E3=81=8C=E3=81=A7=E3=81=8D=E3=81=BE=E3=81=97=E3=81=9F=E3=81=8C</div><div>H=
EX =3D&gt; float=E3=81=A7=E3=81=99=E3=81=A8=EF=BC=8C=E5=95=8F=E9=A1=8C=E3=
=81=8C=E7=99=BA=E7=94=9F=E3=81=97=E3=81=BE=E3=81=99=EF=BC=8E</div><div><br>=
</div><div>1)=E3=83=90=E3=83=BC=E3=82=B8=E3=83=A7=E3=83=B3=E3=81=AB=E3=82=
=88=E3=81=A3=E3=81=A6=E7=B5=90=E6=9E=9C=E3=81=8C=E9=81=95=E3=81=84=E3=81=BE=
=E3=81=99</div><div>2)=E4=B8=B8=E3=82=81=E8=AA=A4=E5=B7=AE=E3=81=8C=E7=99=
=BA=E7=94=9F=E3=81=97=E3=81=BE=E3=81=99</div><div><br></div><div>=E7=B5=90=
=E6=9E=9C=E3=81=8C=EF=BC=8Cruby 1.9.3=E3=81=A0=E3=81=A8=E7=B5=90=E6=9E=9C=
=E3=81=8C=E8=B2=A0=E3=81=AB=E3=81=AA=E3=82=8B=E3=81=AE=E3=81=AF=E3=81=A9=E3=
=81=86=E3=81=AA=E3=81=AE=E3=81=A7=E3=81=97=E3=82=87=E3=81=86=EF=BC=9F</div>

<div><br></div><div>=E5=AF=BE=E5=87=A6=E6=96=B9=E6=B3=95=E3=81=AF=E3=81=82=
=E3=82=8B=E3=81=AE=E3=81=A7=E3=81=97=E3=82=87=E3=81=86=E3=81=8B=EF=BC=9F=EF=
=BC=9F</div><div><br></div><div>=E3=82=B3=E3=83=BC=E3=83=89</div><div><div>=
x=3D-3.14</div><div>s=3D[x].pack(&quot;f&quot;)</div>
<div>sss=3Dsprintf(&quot;%02X%02X%02x%02X\n&quot;, s[0].ord,s[1].ord,s[2].o=
rd,s[3].ord)</div><div>p sss</div><div><br></div><div>p [sss].pack(&quot;H*=
&quot;).unpack(&quot;f&quot;)</div></div><div><br></div><div>=E7=B5=90=E6=
=9E=9C</div><div>


<br></div><div>*Jruby 1.6.6</div><div>[3.14000010490417]<br></div><div><br>=
</div><div>*ruby 1.9.3p125 (2012-02-16) [i386-mswin32_100]</div><div>[-3.14=
0000104904175]<br></div><div><br></div><div><br></div><div><br></div></div>

<div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">2014=E5=B9=B4=
6=E6=9C=8823=E6=97=A5 9:57 junichirou tahara <span dir=3D"ltr">&lt;<a href=
=3D"mailto:taharajunichirou@gmail.com" target=3D"_blank">taharajunichirou@g=
mail.com</a>&gt;</span>:<div><div class=3D"h5">
<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex">
<div dir=3D"ltr">=E3=81=BE=E3=81=A4=E3=82=82=E3=81=A8=E6=A7=98=EF=BC=8C=E3=
=81=88=E3=81=90=E3=81=A1=E6=A7=98<div>=E3=81=82=E3=82=8A=E3=81=8C=E3=81=A8=
=E3=81=86=E3=81=94=E3=81=96=E3=81=84=E3=81=BE=E3=81=97=E3=81=9F=EF=BC=8E</d=
iv><div><br></div><div>=E7=84=A1=E4=BA=8B=E3=81=A7=E3=81=8D=E3=81=BE=E3=81=
=97=E3=81=9F=EF=BC=8E</div><div><br></div><div>=E3=81=93=E3=82=8C=E3=81=A7=
=EF=BC=8C=EF=BC=93=EF=BC=92=EF=BC=A7=E3=81=AE=E3=83=87=E3=83=BC=E3=82=BF=E3=
=81=AE=E8=A7=A3=E6=9E=90=E3=81=8C=E3=81=A7=E3=81=8D=E3=81=BE=E3=81=99=EF=BC=
=8E</div><div><br></div></div><div class=3D"gmail_extra"><br><br><div class=
=3D"gmail_quote">2014-06-23 9:34 GMT+09:00 Nobuyoshi Nakada <span dir=3D"lt=
r">&lt;<a href=3D"mailto:nobu@ruby-lang.org" target=3D"_blank">nobu@ruby-la=
ng.org</a>&gt;</span>:<div>

<div><br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div>(2014/06/23 9:29), EGUCHI Osamu wrote:<=
br>
&gt; % ruby -ve &#39;p [3.14].pack(&quot;f&quot;).unpack(&quot;h*&quot;)&#3=
9;<br>
&gt; ruby 2.0.0p353 (2013-11-22 revision 43784) [amd64-freebsd9]<br>
&gt; [&quot;3c5f8404&quot;]<br>
<br>
</div>h=E3=81=AFlow nibble first=E3=81=AA=E3=81=AE=E3=81=A7H=E3=81=A7=E3=80=
=82<br>
<br>
=C2=A0 =C2=A0 $ ruby -e &#39;p [3.14].pack(&quot;f&quot;).unpack(&quot;H*&q=
uot;)&#39;<br>
=C2=A0 =C2=A0 [&quot;c3f54840&quot;]<br>
<span><font color=3D"#888888"><br>
--<br>
--- =E5=83=95=E3=81=AE=E5=89=8D=E3=81=ABBug=E3=81=AF=E3=81=AA=E3=81=84=E3=
=80=82<br>
--- =E5=83=95=E3=81=AE=E5=BE=8C=E3=82=8D=E3=81=ABBug=E3=81=AF=E3=81=A7=E3=
=81=8D=E3=82=8B=E3=80=82<br>
=C2=A0 =C2=A0 =E4=B8=AD=E7=94=B0 =E4=BC=B8=E6=82=A6<br>
</font></span></blockquote></div></div></div><br></div>
</blockquote></div></div></div><br></div>
</blockquote></div><br></div>

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