1 files changed, 52 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/ext/fixnum_spec.c b/spec/ruby/optional/capi/ext/fixnum_spec.c
new file mode 100644
index 0000000000..c3a207b387
--- /dev/null
+++ b/spec/ruby/optional/capi/ext/fixnum_spec.c
@@ -0,0 +1,52 @@
+#include "ruby.h"
+#include "rubyspec.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static VALUE fixnum_spec_FIX2INT(VALUE self, VALUE value) {
+  int i = FIX2INT(value);
+  return INT2NUM(i);
+}
+
+static VALUE fixnum_spec_FIX2UINT(VALUE self, VALUE value) {
+  unsigned int i = FIX2UINT(value);
+  return UINT2NUM(i);
+}
+
+#ifdef HAVE_RB_FIX2UINT
+static VALUE fixnum_spec_rb_fix2uint(VALUE self, VALUE value) {
+  unsigned long i = rb_fix2uint(value);
+  return ULONG2NUM(i);
+}
+#endif
+
+#ifdef HAVE_RB_FIX2INT
+static VALUE fixnum_spec_rb_fix2int(VALUE self, VALUE value) {
+  long i = rb_fix2int(value);
+  return LONG2NUM(i);
+}
+#endif
+
+void Init_fixnum_spec(void) {
+  VALUE cls;
+  cls = rb_define_class("CApiFixnumSpecs", rb_cObject);
+
+  rb_define_method(cls, "FIX2INT", fixnum_spec_FIX2INT, 1);
+  rb_define_method(cls, "FIX2UINT", fixnum_spec_FIX2UINT, 1);
+
+#ifdef HAVE_RB_FIX2UINT
+  rb_define_method(cls, "rb_fix2uint", fixnum_spec_rb_fix2uint, 1);
+#endif
+
+#ifdef HAVE_RB_FIX2INT
+  rb_define_method(cls, "rb_fix2int", fixnum_spec_rb_fix2int, 1);
+#endif
+
+  (void)cls;
+}
+
+#ifdef __cplusplus
+}
+#endif