opt.h in argon2-1.1.0

- old
+ new

@@ -25,9 +25,19 @@
  * @param next_block Pointer to the block to be XORed over. May coincide with @ref_block
  * @pre all block pointers must be valid
  */
 void fill_block_with_xor(__m128i *state, const uint8_t *ref_block, uint8_t *next_block);
 
+/* LEGACY CODE: version 1.2.1 and earlier
+* Function fills a new memory block by overwriting @next_block.
+* @param state Pointer to the just produced block. Content will be updated(!)
+* @param ref_block Pointer to the reference block
+* @param next_block Pointer to the block to be XORed over. May coincide with @ref_block
+* @pre all block pointers must be valid
+*/
+void fill_block(__m128i *state, const uint8_t *ref_block, uint8_t *next_block);
+
+
 /*
  * Generate pseudo-random values to reference blocks in the segment and puts
  * them into the array
  * @param instance Pointer to the current instance
  * @param position Pointer to the current position