cast n to usize

openethereum · Jan 3, 2019 · b88c149 · b88c149
1 parent dc6acf4
commit b88c149
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/ethcore/src/blockchain/blockchain.rs b/ethcore/src/blockchain/blockchain.rs
@@ -668,7 +668,7 @@ impl BlockChain {
 	/// fetches the list of blocks from best block to n, and n's parent hash
 	/// where n > 0
 	pub fn block_headers_from_best_block(&self, n: u64) -> Option<(Vec<encoded::Header>, H256)> {
-		let mut blocks = Vec::with_capacity(n);
+		let mut blocks = Vec::with_capacity(n as usize);
 		let mut hash = self.best_block_hash();
 
 		for _ in 0..n {

diff --git a/ethcore/src/client/client.rs b/ethcore/src/client/client.rs
@@ -1344,7 +1344,7 @@ impl BlockChainReset for Client {
 			.block_headers_from_best_block(num)
 			.ok_or("Attempted to reset past genesis block")?;
 
-		let mut db_transaction = DBTransaction::with_capacity(num as usize);
+		let mut db_transaction = DBTransaction::with_capacity((num + 1) as usize);
 
 		for hash in &blocks_to_delete {
 			db_transaction.delete(::db::COL_HEADERS, &hash.hash());