Rational#hash

[email protected]$C$?$+!"e(Brational e$B$J$I$Ne(B hash
e$B$,JQ$C$?$h$&$G$9$,!“0UL#$,2r$C$F$$$Je(B
e$B$$$s$G$9$,!”$$F$$k$H!"e(B

h[0] = rb_hash(rb_obj_class(self));
n = rb_hash(dat->num);
h[1] = NUM2LONG(n);
n = rb_hash(dat->den);
h[2] = NUM2LONG(n);

rb_hash e$B$rET9ge(B3e$B2s8F$s$G$$$F!“8e$Ne(B2e$B2s$Oe(B NUM2LONG
e$B$7$F$$$F!”:G=i$N$O$=$&e(B
e$B$8$c$J$$$s$G$9$,!"$3$l$O$3$&$$$&$b$N$H$$$&$3$H$G$$$$$s$G$9$+!#e(B

r22317 | mame | 2009-02-15 04:55:34 +0900 (Sun, 15 Feb 2009) | 8 lines

  • string.c (rb_hash_uint32, rb_hash_uint, rb_hash_start, rb_hash_end),
    include/ruby/intern.h: add Murmurhash API. [ruby-dev:37784]

  • complex.c (nucomp_hash), array.c (rb_ary_hash), time.c (time_hash),
    string.c (rb_str_hsah), object.c (rb_obj_hash), range.c
    (range_hash), struct.c (rb_struct_hash), hash.c (rb_any_hash),
    rational.c (nurat_hash): use Murmurhash. [ruby-dev:37784]

e$B$3$l$_$?$$$G$9$,!"H?1~$,$J$$$h$&$J$iE,Ev$KD>$9$+!"85$KLa$7$^$9!#e(B

[email protected]$G$9!#e(B

At Wed, 22 Jul 2009 20:52:46 +0900,
Tadayoshi F. wrote in [ruby-dev:38850]:

[email protected]$C$?$+!"e(Brational e$B$J$I$Ne(B hash e$B$,JQ$C$?$h$&$G$9$,!“0UL#$,2r$C$F$$$Je(B
e$B$$$s$G$9$,!”$$F$$k$H!"e(B

e$BJQ99$NM}M3$Oe(B[ruby-dev:37777]e$B$N8eH>$K$"$k$h$&$K!"e(Bhashe$BCM$N>WFM$,B?e(B
e$B$$$H$$$&LdBj$N$?$a$G$9!#e(B

At Fri, 16 Jan 2009 20:00:08 +0900,
Keiju ISHITSUKA wrote in [ruby-dev:37777]:

e$B$1$$$8$e!w$$$7$D$+$G$9e(B.
(snip)
e$BF1MM$G$9e(B. e$B$^$?e(B, Fixnum#hashe$B$He(BObject#hashe$B$bJL$Ne(Bseede$B$rM?$($k$N$b$h$5$=$&e(B
e$B$J5$$,$7$^$9e(B.

h[0] = rb_hash(rb_obj_class(self));
n = rb_hash(dat->num);
h[1] = NUM2LONG(n);
n = rb_hash(dat->den);
h[2] = NUM2LONG(n);

rb_hash e$B$rET9ge(B3e$B2s8F$s$G$$$F!“8e$Ne(B2e$B2s$Oe(B NUM2LONG e$B$7$F$$$F!”:G=i$N$O$=$&e(B
e$B$8$c$J$$$s$G$9$,!"$3$l$O$3$&$$$&$b$N$H$$$&$3$H$G$$$$$s$G$9$+!#e(B

e$B$?$7$+$K!"e(BBignume$B$,JV$5$l$k$He(Bhashe$BCM$,JQ$o$C$F$7$^$C$F$^$:$$$N$G:Ge(B
e$B=i$be(BNUM2LONG()e$B$9$Y$-$G$7$g$&$,!“e(BArraye$B$J$IB>$N%/%i%9$G$O%5%V%/%ie(B
e$B%9$G$bF1$8e(Bhashe$BCM$K$J$k$h$&$K$J$C$F$$$k$N$G!”:G=i$Ne(Brb_hash()
e$B$r=|e(B
e$B$/$[$&$,$$$$$H;W$$$^$9!#e(B

Index: complex.c

— complex.c (revision 24266)
+++ complex.c (working copy)
@@ -1157,13 +1157,12 @@ static VALUE
nucomp_hash(VALUE self)
{

  • long v, h[3];
  • long v, h[2];
    VALUE n;

    get_dat1(self);

  • h[0] = rb_hash(rb_obj_class(self));
    n = rb_hash(dat->real);
  • h[1] = NUM2LONG(n);
  • h[0] = NUM2LONG(n);
    n = rb_hash(dat->imag);
  • h[2] = NUM2LONG(n);
  • h[1] = NUM2LONG(n);
    v = rb_memhash(h, sizeof(h));
    return LONG2FIX(v);
    Index: rational.c
    ===================================================================
    — rational.c (revision 24266)
    +++ rational.c (working copy)
    @@ -1361,13 +1361,12 @@ static VALUE
    nurat_hash(VALUE self)
    {
  • long v, h[3];
  • long v, h[2];
    VALUE n;

    get_dat1(self);

  • h[0] = rb_hash(rb_obj_class(self));
    n = rb_hash(dat->num);
  • h[1] = NUM2LONG(n);
  • h[0] = NUM2LONG(n);
    n = rb_hash(dat->den);
  • h[2] = NUM2LONG(n);
  • h[1] = NUM2LONG(n);
    v = rb_memhash(h, sizeof(h));
    return LONG2FIX(v);

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

In message “Re: [ruby-dev:38897] Re: Rational#hash”
on Sat, 25 Jul 2009 13:05:12 +0900, Nobuyoshi N.
[email protected] writes:

|> rb_hash e$B$rET9ge(B3e$B2s8F$s$G$$$F!“8e$Ne(B2e$B2s$Oe(B NUM2LONG e$B$7$F$$$F!”:G=i$N$O$=$&e(B
|> e$B$8$c$J$$$s$G$9$,!"$3$l$O$3$&$$$&$b$N$H$$$&$3$H$G$$$$$s$G$9$+!#e(B
|
|e$B$?$7$+$K!"e(BBignume$B$,JV$5$l$k$He(Bhashe$BCM$,JQ$o$C$F$7$^$C$F$^$:$$$N$G:Ge(B
|e$B=i$be(BNUM2LONG()e$B$9$Y$-$G$7$g$&$,!“e(BArraye$B$J$IB>$N%/%i%9$G$O%5%V%/%ie(B
|e$B%9$G$bF1$8e(Bhashe$BCM$K$J$k$h$&$K$J$C$F$$$k$N$G!”:G=i$Ne(Brb_hash() e$B$r=|e(B
|e$B$/$[$&$,$$$$$H;W$$$^$9!#e(B

e$B%3%_%C%H$7$F$/[email protected]$5$$!#e(B

e$BBP1~$I$&$b!#e(B
[email protected]$5$s$,%Q%C%A=q$$$?$N$KJL?M$,%3%_%C%H$7$F$?$H$O!"$A$g$C$HIT;W5D!#e(B

[email protected]$G$9!#e(B

At Sat, 25 Jul 2009 13:05:12 +0900,
Nobuyoshi N. wrote in [ruby-dev:38897]:

e$B$?$7$+$K!"e(BBignume$B$,JV$5$l$k$He(Bhashe$BCM$,JQ$o$C$F$7$^$C$F$^$:$$$N$G:Ge(B
e$B=i$be(BNUM2LONG()e$B$9$Y$-$G$7$g$&$,!“e(BArraye$B$J$IB>$N%/%i%9$G$O%5%V%/%ie(B
e$B%9$G$bF1$8e(Bhashe$BCM$K$J$k$h$&$K$J$C$F$$$k$N$G!”:G=i$Ne(Brb_hash() e$B$r=|e(B
e$B$/$[$&$,$$$$$H;W$$$^$9!#e(B

e$B>/!9D{@5!#e(Brb_hash()e$B$NLa$jCM$Oe(Bhashe$B%a%=%C%I$=$N$^$^$G$O$J$/!">o$Ke(B
Fixnume$B$rJV$9$h$&$K$J$C$F$$$k$N$G!"A0H>$N!Ve(BNUM2LONGe$B$7$J$1$l$P$J$ie(B
e$B$J$$!W$H$$$&$N$O8m$j$G$7$?!#e(B

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