Call functions directly from `mrb_ensure_float_type()`

ref. commit 7f40b645d2773c8f50c48ae4adf90488e164da55

Currently, the build configurations `MRB_USE_COMPLEX` and `MRB_USE_RATIONAL` are not listed in the documentation.
In other words, they are hidden settings.
They are defined in `mrbgems/mruby-{complex,rational}/mrbgem.rake`.
So this patch assumes that it is safe to refer to these functions in core-gems directly from core functions.

However, applications that link with `libmruby_core.a` will have compatibility issues.
In fact, `mrbgems/mruby-bin-mrbc` links with `libmruby_core.a`, so I had to prepare a dummy function.

1 files changed, 4 insertions, 4 deletions

diff --git a/mrbgems/mruby-rational/src/rational.c b/mrbgems/mruby-rational/src/rational.c
index de413ba79..b12f45bde 100644
--- a/mrbgems/mruby-rational/src/rational.c
+++ b/mrbgems/mruby-rational/src/rational.c
@@ -291,8 +291,8 @@ rat_float(struct mrb_rational *p)
   return f;
 }
 
-static mrb_value
-rational_to_f(mrb_state *mrb, mrb_value self)
+mrb_value
+mrb_rational_to_f(mrb_state *mrb, mrb_value self)
 {
   struct mrb_rational *p = rational_ptr(mrb, self);
   return mrb_float_value(mrb, rat_float(p));
@@ -394,7 +394,7 @@ rational_eq(mrb_state *mrb, mrb_value x)
   case MRB_TT_COMPLEX:
    {
       mrb_bool mrb_complex_eq(mrb_state *mrb, mrb_value, mrb_value);
-      result = mrb_complex_eq(mrb, y, rational_to_f(mrb, x));
+      result = mrb_complex_eq(mrb, y, mrb_rational_to_f(mrb, x));
       break;
     }
 #endif
@@ -712,7 +712,7 @@ void mrb_mruby_rational_gem_init(mrb_state *mrb)
   mrb_define_method(mrb, rat, "numerator", rational_numerator, MRB_ARGS_NONE());
   mrb_define_method(mrb, rat, "denominator", rational_denominator, MRB_ARGS_NONE());
 #ifndef MRB_NO_FLOAT
-  mrb_define_method(mrb, rat, "to_f", rational_to_f, MRB_ARGS_NONE());
+  mrb_define_method(mrb, rat, "to_f", mrb_rational_to_f, MRB_ARGS_NONE());
 #endif
   mrb_define_method(mrb, rat, "to_i", rational_to_i, MRB_ARGS_NONE());
   mrb_define_method(mrb, rat, "to_r", rational_to_r, MRB_ARGS_NONE());