# Marshal.load( Marshal.dump( Float ) )$B$NIT0lCW(B@1.8

**URL:** <https://www.ruby-forum.com/t/marshal-load-marshal-dump-float-b-nit0lcw-b-1-8/137147>\
**Category:** Development\
**Created:** [May 9, 2008, 12:19pm UTC](https://www.ruby-forum.com/t/marshal-load-marshal-dump-float-b-nit0lcw-b-1-8/137147 "2008-05-09T12:19:58Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![H.Holon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/59ef9b/32.png) [@H.Holon](https://www.ruby-forum.com/u/H.Holon)\
**Post date:** [May 9, 2008, 12:19pm UTC](https://www.ruby-forum.com/t/marshal-load-marshal-dump-float-b-nit0lcw-b-1-8/137147/1 "2008-05-09T12:19:58Z")

</div>

H.Holone$B$G$9!#e(B

ruby1.8e$B$K$\*$$$F!"0J2\<$N!Ve(BMarshale$B$Ge(B dumpe$B$7$Fe(B  
loade$B$7$FLa$9!We(B  
codee$B$GIT0lCW$r0UL#$9$k$$$/$D$+$N?tCM$,I=\<($5$l$^$9!#e(B

$ cat ~/tmp/test.rb  
srand(1)  
1000000.times do  
f = rand(0)  
fm = Marshal.dump(f)  
if Marshal.load(fm) != f then  
p fm, f  
end  
end

$ ./ruby ~/tmp/test.rb  
“\004\bf\e2.2971038112107323e-05”  
2.29710381121073e-05  
“\004\bf\e0.00012889203743071675”  
0.000128892037430717  
“\004\bf\e1.2080800923408574e-05”  
1.20808009234086e-05  
“\004\bf\e0.00016731992938723295”  
0.000167319929387233  
“\004\bf\e0.00015761288904592163”  
0.000157612889045922  
“\004\bf\0320.0017032264342446979”  
0.0017032264342447  
“\004\bf\e0.91493880848429388\000\377\377”  
0.914938808484294  
“\004\bf\0270.1635388066770247”  
0.163538806677025  
“\004\bf\0320.0018947760614906883”  
0.00189477606149069  
“\004\bf\0310.015573558744790716”  
0.0155735587447907

ruby1.9e$B$K$\*$$$F$O\<j6a$G;n$7$?HO0O$G$OLdBj$"$j$^$;$se(B  
(e$B2?$bI=\<($5$l$^$;$se(B)e$B!#e(B

e$B!!;n$7$Ke(B Marshale$BJ8;zNs$re(B stdlibe$B$Ne(B strtod()  
e$B$G\>.?t$KLa$7$Fe(B  
e$B$_$?$H$3$m!"8m:9$N$J$$85$N?tCM$KLa$j$^$7$?$N$G!"e(B1.8  
e$B$N8=9T$Ne(B ruby\_strtod()e$B$N@:EYITB-$@$H;W$$$^$9!#e(B  
e$B!!e(B1.9e$B$Ne(B ruby\_strtod()e$B$OJLJ\*$K$J$C$F$$$k$h$&$G$9$N$Ge(B  
1.8e$B$N$_$N\>I\>u$J$N$O$=$3$,M}M3$J$N$@$H;W$$$^$9!#e(B

# backporte$B$O0l=V9M$($?$N$G$9$,!"e(B1.9e$B$Ne(B ruby\_strtod()e$B$Oe(B

# e$B0l8+$5$s$N;d$K$O87$7$$$N$G!"e(Bdefinee$B$^$o$j$N0UL#$re(B

# e$BM}2r$7$F$$$kJ}$K$\*4j$$$7$^$9!De(B

* * *

H.Holon [e$B%i!\<%@$C$]$$9ue(B75e$B$N2He(B | [http://radastery.jp/](http://radastery.jp/) ]

---

<div class="post-metadata">

**Author:** ![H.Holon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/59ef9b/32.png) [@H.Holon](https://www.ruby-forum.com/u/H.Holon)\
**Post date:** [May 9, 2008, 2:08pm UTC](https://www.ruby-forum.com/t/marshal-load-marshal-dump-float-b-nit0lcw-b-1-8/137147/2 "2008-05-09T14:08:52Z")

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e$BCf@n$H$$$$$^$9!#e(B

e$B$3$l$O!"e(B[ruby-dev:31567] e$B$N%Q%C%A$Ge(B fix e$B$7$?$N$He(B  
e$BF1$8LdBj$@$H;W$$$^$9!#e(B

–  
Satoshi N.

---

<div class="post-metadata">

**Author:** ![H.Holon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/59ef9b/32.png) [@H.Holon](https://www.ruby-forum.com/u/H.Holon)\
**Post date:** [May 10, 2008, 2:17am UTC](https://www.ruby-forum.com/t/marshal-load-marshal-dump-float-b-nit0lcw-b-1-8/137147/3 "2008-05-10T02:17:24Z")

</div>

e$B$^$D$b$He(B e$B$f$-$R$m$G$9e(B

In message “Re: [ruby-dev:34623] Marshal.load( Marshal.dump( Float )  
)e$B$NIT0lCWe(B@1.8”  
on Fri, 9 May 2008 19:19:03 +0900, “H.Holon” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
writes:

| H.Holone$B$G$9!#e(B  
|  
|ruby1.8e$B$K$\*$$$F!"0J2\<$N!Ve(BMarshale$B$Ge(B dumpe$B$7$Fe(B  
|loade$B$7$FLa$9!We(B  
|codee$B$GIT0lCW$r0UL#$9$k$$$/$D$+$N?tCM$,I=\<($5$l$^$9!#e(B

e$B;d$Ne(BDebian GNU/Linuxe$B$G$O:F8=$7$J$$$N$,IT;W5D$J$N$G$9$,!“$;$Ce(B  
e$B$+$/Cf@n$5$s$+$i%Q%C%Ae(B[ruby-dev:34625]e$B$b$$$?$@$$$?$N$G!”\<h$je(B  
e$B9~$b$&$H;W$$$^$9!#e(B

---

<div class="post-metadata">

**Author:** ![H.Holon](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/59ef9b/32.png) [@H.Holon](https://www.ruby-forum.com/u/H.Holon)\
**Post date:** [May 10, 2008, 8:18am UTC](https://www.ruby-forum.com/t/marshal-load-marshal-dump-float-b-nit0lcw-b-1-8/137147/4 "2008-05-10T08:18:42Z")

</div>

中川といいます。

すみません。  
メールで長い行が入ったパッチを送ると、折り返されてしまいますね。  
添付します。