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Remove redundant flo_hash function.

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`flo_hash` implemented `15.2.8.3.18` but `Kernel#hash` (15.3.1.3.15)
now works for numbers.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2017-08-10 08:38:27 +09:00
parent 3d288ef0d8
commit a7462a7f42
1 changed files with 0 additions and 27 deletions
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src/numeric.c
-27
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@@ -415,32 +415,6 @@ flo_rshift(mrb_state *mrb, mrb_value x)
return flo_shift(mrb, x, width);
}
/* 15.2.8.3.18 */
/*
* call-seq:
* flt.hash -> integer
*
* Returns a hash code for this float.
*/
static mrb_value
flo_hash(mrb_state *mrb, mrb_value num)
{
mrb_float d;
char *c;
size_t i;
mrb_int hash;
d = (mrb_float)mrb_fixnum(num);
/* normalize -0.0 to 0.0 */
if (d == 0) d = 0.0;
c = (char*)&d;
for (hash=0,i=0; i<sizeof(mrb_float); i++) {
hash = (hash * 971) ^ (unsigned char)c[i];
}
if (hash < 0) hash = -hash;
return mrb_fixnum_value(hash);
}
/* 15.2.9.3.13 */
/*
* call-seq:
@@ -1332,7 +1306,6 @@ mrb_init_numeric(mrb_state *mrb)
mrb_define_method(mrb, fixnum, "<<", fix_lshift, MRB_ARGS_REQ(1)); /* 15.2.8.3.12 */
mrb_define_method(mrb, fixnum, ">>", fix_rshift, MRB_ARGS_REQ(1)); /* 15.2.8.3.13 */
mrb_define_method(mrb, fixnum, "eql?", fix_eql, MRB_ARGS_REQ(1)); /* 15.2.8.3.16 */
mrb_define_method(mrb, fixnum, "hash", flo_hash, MRB_ARGS_NONE()); /* 15.2.8.3.18 */
mrb_define_method(mrb, fixnum, "to_f", fix_to_f, MRB_ARGS_NONE()); /* 15.2.8.3.23 */
mrb_define_method(mrb, fixnum, "to_s", fix_to_s, MRB_ARGS_NONE()); /* 15.2.8.3.25 */
mrb_define_method(mrb, fixnum, "inspect", fix_to_s, MRB_ARGS_NONE());