1 files changed, 29 insertions, 0 deletions
diff --git a/ext/-test-/string/coderange.c b/ext/-test-/string/coderange.c
new file mode 100644
index 0000000000..f6f58c4230
--- /dev/null
+++ b/ext/-test-/string/coderange.c
@@ -0,0 +1,29 @@
+#include "ruby/ruby.h"
+#include "ruby/encoding.h"
+
+static VALUE sym_7bit, sym_valid, sym_unknown, sym_broken;
+static VALUE
+str_coderange(VALUE str)
+{
+    switch (ENC_CODERANGE(str)) {
+      case ENC_CODERANGE_7BIT:
+	return sym_7bit;
+      case ENC_CODERANGE_VALID:
+	return sym_valid;
+      case ENC_CODERANGE_UNKNOWN:
+	return sym_unknown;
+      case ENC_CODERANGE_BROKEN:
+	return sym_broken;
+    }
+    UNREACHABLE;
+}
+
+void
+Init_coderange(VALUE klass)
+{
+    sym_7bit = ID2SYM(rb_intern("7bit"));
+    sym_valid = ID2SYM(rb_intern("valid"));
+    sym_unknown = ID2SYM(rb_intern("unknown"));
+    sym_broken = ID2SYM(rb_intern("broken"));
+    rb_define_method(klass, "coderange", str_coderange, 0);
+}