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Update Float#to_s to keep trailing zero as CRuby does; ref 68cebb6

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Yukihiro "Matz" Matsumoto
2020-11-18 18:45:38 +09:00
parent 5f7eb20256
commit 1974aa0f72
2 changed files with 25 additions and 53 deletions
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src/numeric.c
+18 -46
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@@ -249,8 +249,23 @@ flo_div(mrb_state *mrb, mrb_value xv)
return mrb_float_value(mrb, x);
}
/* 15.2.9.3.16(x) */
/*
* call-seq:
* flt.to_s -> string
* flt.inspect -> string
*
* Returns a string containing a representation of self. As well as a
* fixed or exponential form of the number, the call may return
* "<code>NaN</code>", "<code>Infinity</code>", and
* "<code>-Infinity</code>".
*
* 3.0.to_s #=> 3.0
* 3.25.to_s #=> 3.25
*/
static mrb_value
flo_to_str(mrb_state *mrb, mrb_value flt, mrb_bool add_dot_zero)
flo_to_s(mrb_state *mrb, mrb_value flt)
{
mrb_float f = mrb_float(flt);
mrb_value str;
@@ -293,7 +308,7 @@ flo_to_str(mrb_state *mrb, mrb_value flt, mrb_bool add_dot_zero)
str = mrb_float_to_str(mrb, flt, fmt);
goto insert_dot_zero;
}
else if (add_dot_zero) {
else {
mrb_str_cat(mrb, str, ".0", 2);
}
@@ -305,49 +320,6 @@ flo_to_str(mrb_state *mrb, mrb_value flt, mrb_bool add_dot_zero)
return str;
}
/* 15.2.9.3.16(x) */
/*
* call-seq:
* flt.to_s -> string
*
* Returns a string containing a representation of self. As well as a
* fixed or exponential form of the number, the call may return
* "<code>NaN</code>", "<code>Infinity</code>", and
* "<code>-Infinity</code>".
*
* Trailing <code>.0</code> is removed.
*
* 3.0.to_s #=> 3
* 3.25.to_s #=> 3.25
*/
static mrb_value
flo_to_s(mrb_state *mrb, mrb_value flt)
{
return flo_to_str(mrb, flt, FALSE);
}
/*
* call-seq:
* flt.inspect -> string
*
* Returns a string containing a representation of self. As well as a
* fixed or exponential form of the number, the call may return
* "<code>NaN</code>", "<code>Infinity</code>", and
* "<code>-Infinity</code>".
*
* Trailing <code>.0</code> is added.
*
* 3.0.to_s #=> 3.0
* 3.25.to_s #=> 3.25
*/
static mrb_value
flo_inspect(mrb_state *mrb, mrb_value flt)
{
return flo_to_str(mrb, flt, TRUE);
}
/* 15.2.9.3.2 */
/*
* call-seq:
@@ -1725,7 +1697,7 @@ mrb_init_numeric(mrb_state *mrb)
mrb_define_method(mrb, fl, "eql?", flo_eql, MRB_ARGS_REQ(1)); /* 15.2.8.3.16 */
mrb_define_method(mrb, fl, "to_s", flo_to_s, MRB_ARGS_NONE()); /* 15.2.9.3.16(x) */
mrb_define_method(mrb, fl, "inspect", flo_inspect, MRB_ARGS_NONE());
mrb_define_method(mrb, fl, "inspect", flo_to_s , MRB_ARGS_NONE());
mrb_define_method(mrb, fl, "nan?", flo_nan_p, MRB_ARGS_NONE());
#ifdef INFINITY