revive #to_int

src/numeric.c

@@ -651,6 +651,7 @@ flo_round(mrb_state *mrb, mrb_value num)
 /*
  *  call-seq:
  *     flt.to_i      ->  integer
+ *     flt.to_int    ->  integer
  *     flt.truncate  ->  integer
  *
  *  Returns <i>flt</i> truncated to an <code>Integer</code>.
@@ -721,6 +722,7 @@ num_round(mrb_state *mrb, mrb_value num)
 /*
  *  call-seq:
  *     int.to_i      ->  integer
+ *     int.to_int    ->  integer
  *     int.floor     ->  integer
  *     int.ceil      ->  integer
  *     int.round     ->  integer
@@ -1412,6 +1414,7 @@ mrb_init_numeric(mrb_state *mrb)
   integer = mrb_define_class(mrb, "Integer",  numeric);
   mrb_undef_class_method(mrb, integer, "new");
   mrb_define_method(mrb, integer, "to_i", int_to_i, ARGS_NONE());              /* 15.2.8.3.24 */
+  mrb_define_method(mrb, integer, "to_int", int_to_i, ARGS_NONE());
   fixnum = mrb->fixnum_class = mrb_define_class(mrb, "Fixnum", integer);
 
   mrb_undef_class_method(mrb,  fixnum, "new");
@@ -1455,6 +1458,7 @@ mrb_init_numeric(mrb_state *mrb)
   mrb_define_method(mrb, fl,      "round",     flo_round,        ARGS_ANY());  /* 15.2.9.3.12 */
   mrb_define_method(mrb, fl,      "to_f",      flo_to_f,         ARGS_NONE()); /* 15.2.9.3.13 */
   mrb_define_method(mrb, fl,      "to_i",      flo_truncate,     ARGS_NONE()); /* 15.2.9.3.14 */
+  mrb_define_method(mrb, fl,      "to_int",    flo_truncate,     ARGS_NONE());
   mrb_define_method(mrb, fl,      "truncate",  flo_truncate,     ARGS_NONE()); /* 15.2.9.3.15 */
 
   mrb_define_method(mrb, fl,      "to_s",      flo_to_s,         ARGS_NONE()); /* 15.2.9.3.16(x) */