etc.c: keep full `float32` with `MRB_64BIT` and `MRB_USE_FLOAT32`.
MODIFY
src/etc.c
src/etc.c
@@ -162,10 +162,11 @@ mrb_word_boxing_float_value(mrb_state *mrb, mrb_float f)
v.p = mrb_obj_alloc(mrb, MRB_TT_FLOAT, mrb->float_class);
v.fp->f = f;
MRB_SET_FROZEN_FLAG(v.bp);
-#else
-#if defined(MRB_64BIT) && defined(MRB_USE_FLOAT32)
+#elif defined(MRB_64BIT) && defined(MRB_USE_FLOAT32)
v.w = 0;
-#endif
+ v.f = f;
+ v.w = ((v.w<<2) & ~3) | 2;
+#else
v.f = f;
v.w = (v.w & ~3) | 2;
#endif
@@ -180,6 +181,9 @@ mrb_word_boxing_value_float(mrb_value v)
union mrb_value_ u;
u.value = v;
u.w = u.w & ~3;
+#if defined(MRB_64BIT) && defined(MRB_USE_FLOAT32)
+ u.w >>= 2;
+#endif
return u.f;
}
#endif

etc.c: keep full `float32` with `MRB_64BIT` and `MRB_USE_FLOAT32`.