Introducing ecma_compare_zt_string_to_zt_string interface that is __strcmp for ecma_char_t* zero-terminated strings.

src/libecmaobjects/ecma-helpers.c

@@ -678,6 +678,22 @@ ecma_compare_ecma_string_to_ecma_string (const ecma_array_first_chunk_t *string1
   return true;
 } /* ecma_compare_ecma_string_to_ecma_string */
 
+/**
+ * Compare zero-terminated string to zero-terminated string
+ *
+ * @return  0 - if strings are equal;
+ *         -1 - if first string is lexicographically less than second;
+ *          1 - otherwise.
+ */
+int32_t
+ecma_compare_zt_string_to_zt_string (const ecma_char_t *string1_p, /**< zero-terminated string */
+                                     const ecma_char_t *string2_p) /**< zero-terminated string */
+{
+  TODO (Implement comparison that supports UTF-16);
+
+  return __strcmp ( (char*)string1_p, (char*)string2_p);
+} /* ecma_compare_zt_string_to_zt_string */
+
 /**
  * Compare zero-terminated string to ecma-string
  *

src/libecmaobjects/ecma-helpers.h

@@ -131,6 +131,7 @@ extern ssize_t ecma_copy_ecma_string_chars_to_buffer (ecma_array_first_chunk_t *
                                                       uint8_t *buffer_p,
                                                       size_t buffer_size);
 extern ecma_array_first_chunk_t* ecma_duplicate_ecma_string (ecma_array_first_chunk_t *first_chunk_p);
+extern int32_t ecma_compare_zt_string_to_zt_string (const ecma_char_t *string1_p, const ecma_char_t *string2_p);
 extern bool ecma_compare_zt_string_to_ecma_string (const ecma_char_t *string_p,
                                                    const ecma_array_first_chunk_t *ecma_string_p);
 extern bool ecma_compare_ecma_string_to_ecma_string (const ecma_array_first_chunk_t *string1_p,