1 files changed, 45 insertions, 5 deletions

diff --git a/spec/ruby/optional/capi/ext/range_spec.c b/spec/ruby/optional/capi/ext/range_spec.c
index 7a475ec695..9faed3e5ee 100644
--- a/spec/ruby/optional/capi/ext/range_spec.c
+++ b/spec/ruby/optional/capi/ext/range_spec.c
@@ -7,7 +7,7 @@ extern "C" {
 
 VALUE range_spec_rb_range_new(int argc, VALUE* argv, VALUE self) {
   int exclude_end = 0;
-  if(argc == 3) {
+  if (argc == 3) {
     exclude_end = RTEST(argv[2]);
   }
   return rb_range_new(argv[0], argv[1], exclude_end);
@@ -25,9 +25,9 @@ VALUE range_spec_rb_range_values(VALUE self, VALUE range) {
   return ary;
 }
 
-VALUE range_spec_rb_range_beg_len(VALUE self, VALUE range, VALUE begpv, VALUE lenpv, VALUE lenv, VALUE errv) {
-  long begp = FIX2LONG(begpv);
-  long lenp = FIX2LONG(lenpv);
+VALUE range_spec_rb_range_beg_len(VALUE self, VALUE range, VALUE lenv, VALUE errv) {
+  long begp = 0;
+  long lenp = 0;
   long len = FIX2LONG(lenv);
   int err = FIX2INT(errv);
   VALUE ary = rb_ary_new();
@@ -38,11 +38,51 @@ VALUE range_spec_rb_range_beg_len(VALUE self, VALUE range, VALUE begpv, VALUE le
   return ary;
 }
 
+VALUE range_spec_rb_arithmetic_sequence_extract(VALUE self, VALUE object) {
+  VALUE ary = rb_ary_new();
+  rb_arithmetic_sequence_components_t components;
+
+  int status = rb_arithmetic_sequence_extract(object, &components);
+
+  if (!status) {
+      rb_ary_store(ary, 0, LONG2FIX(status));
+      return ary;
+  }
+
+  rb_ary_store(ary, 0, LONG2FIX(status));
+  rb_ary_store(ary, 1, components.begin);
+  rb_ary_store(ary, 2, components.end);
+  rb_ary_store(ary, 3, components.step);
+  rb_ary_store(ary, 4, components.exclude_end ? Qtrue : Qfalse);
+  return ary;
+}
+
+VALUE range_spec_rb_arithmetic_sequence_beg_len_step(VALUE self, VALUE aseq, VALUE lenv, VALUE errv) {
+  long begp = 0;
+  long lenp = 0;
+  long stepp = 0;
+
+  long len = FIX2LONG(lenv);
+  int err = FIX2INT(errv);
+
+  VALUE success = rb_arithmetic_sequence_beg_len_step(aseq, &begp, &lenp, &stepp, len, err);
+
+  VALUE ary = rb_ary_new();
+  rb_ary_store(ary, 0, success);
+  rb_ary_store(ary, 1, LONG2FIX(begp));
+  rb_ary_store(ary, 2, LONG2FIX(lenp));
+  rb_ary_store(ary, 3, LONG2FIX(stepp));
+
+  return ary;
+}
+
 void Init_range_spec(void) {
   VALUE cls = rb_define_class("CApiRangeSpecs", rb_cObject);
   rb_define_method(cls, "rb_range_new", range_spec_rb_range_new, -1);
   rb_define_method(cls, "rb_range_values", range_spec_rb_range_values, 1);
-  rb_define_method(cls, "rb_range_beg_len", range_spec_rb_range_beg_len, 5);
+  rb_define_method(cls, "rb_range_beg_len", range_spec_rb_range_beg_len, 3);
+  rb_define_method(cls, "rb_arithmetic_sequence_extract", range_spec_rb_arithmetic_sequence_extract, 1);
+  rb_define_method(cls, "rb_arithmetic_sequence_beg_len_step", range_spec_rb_arithmetic_sequence_beg_len_step, 3);
 }
 
 #ifdef __cplusplus