ethash: Move ethash::result to C

Author: chfast

include/ethash/ethash.h

@@ -44,6 +44,13 @@ struct ethash_epoch_context
 struct ethash_epoch_context_full;
 
 
+struct ethash_result
+{
+    union ethash_hash256 final_hash;
+    union ethash_hash256 mix_hash;
+};
+
+
 /**
  * Calculates the number of items in the light cache for given epoch.
  *

include/ethash/ethash.hpp

@@ -33,6 +33,8 @@ static constexpr int num_dataset_accesses = ETHASH_NUM_DATASET_ACCESSES;
 using epoch_context = ethash_epoch_context;
 using epoch_context_full = ethash_epoch_context_full;
 
+using result = ethash_result;
+
 /// Constructs a 256-bit hash from an array of bytes.
 ///
 /// @param bytes  A pointer to array of at least 32 bytes.
@@ -44,12 +46,6 @@ inline hash256 hash256_from_bytes(const uint8_t bytes[32]) noexcept
     return h;
 }
 
-struct result
-{
-    hash256 final_hash;
-    hash256 mix_hash;
-};
-
 struct search_result
 {
     bool solution_found = false;