Typo fixes in comments

qa/rpc-tests/merkle_blocks.py

@@ -72,7 +72,7 @@ class MerkleBlockTest(BitcoinTestFramework):
         txid_spent = txin_spent["txid"]
         txid_unspent = txid1 if txin_spent["txid"] != txid1 else txid2
 
-        # We cant find the block from a fully-spent tx
+        # We can't find the block from a fully-spent tx
         assert_raises(JSONRPCException, self.nodes[2].gettxoutproof, [txid_spent])
         # ...but we can if we specify the block
         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_spent], blockhash)), [txid_spent])

src/net.cpp

@@ -2177,7 +2177,7 @@ bool CNode::OutboundTargetReached(bool historicalBlockServingLimit)
 
     if (historicalBlockServingLimit)
     {
-        // keep a large enought buffer to at least relay each block once
+        // keep a large enough buffer to at least relay each block once
         uint64_t timeLeftInCycle = GetMaxOutboundTimeLeftInCycle();
         uint64_t buffer = timeLeftInCycle / 600 * MAX_BLOCK_SIZE;
         if (buffer >= nMaxOutboundLimit || nMaxOutboundTotalBytesSentInCycle >= nMaxOutboundLimit - buffer)

src/netbase.cpp

@@ -140,7 +140,7 @@ bool static LookupIntern(const char *pszName, std::vector<CNetAddr>& vIP, unsign
         return false;
 
     do {
-        // Should set the timeout limit to a resonable value to avoid
+        // Should set the timeout limit to a reasonable value to avoid
         // generating unnecessary checking call during the polling loop,
         // while it can still response to stop request quick enough.
         // 2 seconds looks fine in our situation.

src/policy/fees.cpp

@@ -87,7 +87,7 @@ double TxConfirmStats::EstimateMedianVal(int confTarget, double sufficientTxVal,
     int maxbucketindex = buckets.size() - 1;
 
     // requireGreater means we are looking for the lowest fee/priority such that all higher
-    // values pass, so we start at maxbucketindex (highest fee) and look at succesively
+    // values pass, so we start at maxbucketindex (highest fee) and look at successively
     // smaller buckets until we reach failure.  Otherwise, we are looking for the highest
     // fee/priority such that all lower values fail, and we go in the opposite direction.
     unsigned int startbucket = requireGreater ? maxbucketindex : 0;

src/policy/fees.h

@@ -29,7 +29,7 @@ class CTxMemPool;
  * included in blocks before transactions of lower fee/priority.   So for
  * example if you wanted to know what fee you should put on a transaction to
  * be included in a block within the next 5 blocks, you would start by looking
- * at the bucket with with the highest fee transactions and verifying that a
+ * at the bucket with the highest fee transactions and verifying that a
  * sufficiently high percentage of them were confirmed within 5 blocks and
  * then you would look at the next highest fee bucket, and so on, stopping at
  * the last bucket to pass the test.   The average fee of transactions in this
@@ -87,13 +87,13 @@ private:
     // Count the total # of txs in each bucket
     // Track the historical moving average of this total over blocks
     std::vector<double> txCtAvg;
-    // and calcuate the total for the current block to update the moving average
+    // and calculate the total for the current block to update the moving average
     std::vector<int> curBlockTxCt;
 
     // Count the total # of txs confirmed within Y blocks in each bucket
     // Track the historical moving average of theses totals over blocks
     std::vector<std::vector<double> > confAvg; // confAvg[Y][X]
-    // and calcuate the totals for the current block to update the moving averages
+    // and calculate the totals for the current block to update the moving averages
     std::vector<std::vector<int> > curBlockConf; // curBlockConf[Y][X]
 
     // Sum the total priority/fee of all tx's in each bucket

src/qt/clientmodel.cpp

@@ -112,7 +112,7 @@ double ClientModel::getVerificationProgress(const CBlockIndex *tipIn) const
 void ClientModel::updateTimer()
 {
     // no locking required at this point
-    // the following calls will aquire the required lock
+    // the following calls will acquire the required lock
     Q_EMIT mempoolSizeChanged(getMempoolSize(), getMempoolDynamicUsage());
     Q_EMIT bytesChanged(getTotalBytesRecv(), getTotalBytesSent());
 }

src/qt/sendcoinsdialog.cpp

@@ -789,7 +789,7 @@ void SendCoinsDialog::coinControlUpdateLabels()
 
     if (model->getOptionsModel()->getCoinControlFeatures())
     {
-        // enable minium absolute fee UI controls
+        // enable minimum absolute fee UI controls
         ui->radioCustomAtLeast->setVisible(true);
 
         // only enable the feature if inputs are selected

src/test/merkle_tests.cpp

@@ -77,7 +77,7 @@ BOOST_AUTO_TEST_CASE(merkle_test)
             int duplicate2 = mutate >= 2 ? 1 << ctz(ntx1) : 0; // Likewise for the second mutation.
             if (duplicate2 >= ntx1) break;
             int ntx2 = ntx1 + duplicate2;
-            int duplicate3 = mutate >= 3 ? 1 << ctz(ntx2) : 0; // And for the the third mutation.
+            int duplicate3 = mutate >= 3 ? 1 << ctz(ntx2) : 0; // And for the third mutation.
             if (duplicate3 >= ntx2) break;
             int ntx3 = ntx2 + duplicate3;
             // Build a block with ntx different transactions.

src/torcontrol.cpp

@@ -303,7 +303,7 @@ static std::map<std::string,std::string> ParseTorReplyMapping(const std::string
 
 /** Read full contents of a file and return them in a std::string.
  * Returns a pair <status, string>.
- * If an error occured, status will be false, otherwise status will be true and the data will be returned in string.
+ * If an error occurred, status will be false, otherwise status will be true and the data will be returned in string.
  *
  * @param maxsize Puts a maximum size limit on the file that is read. If the file is larger than this, truncated data
  *         (with len > maxsize) will be returned.

src/wallet/rpcwallet.cpp

@@ -1424,7 +1424,7 @@ UniValue listtransactions(const UniValue& params, bool fHelp)
             "                                         'send' category of transactions.\n"
             "    \"confirmations\": n,       (numeric) The number of confirmations for the transaction. Available for 'send' and \n"
             "                                         'receive' category of transactions. Negative confirmations indicate the\n"
-            "                                         transation conflicts with the block chain\n"
+            "                                         transaction conflicts with the block chain\n"
             "    \"trusted\": xxx            (bool) Whether we consider the outputs of this unconfirmed transaction safe to spend.\n"
             "    \"blockhash\": \"hashvalue\", (string) The block hash containing the transaction. Available for 'send' and 'receive'\n"
             "                                          category of transactions.\n"

src/wallet/wallet_ismine.h

@@ -17,7 +17,7 @@ class CScript;
 enum isminetype
 {
     ISMINE_NO = 0,
-    //! Indicates that we dont know how to create a scriptSig that would solve this if we were given the appropriate private keys
+    //! Indicates that we don't know how to create a scriptSig that would solve this if we were given the appropriate private keys
     ISMINE_WATCH_UNSOLVABLE = 1,
     //! Indicates that we know how to create a scriptSig that would solve this if we were given the appropriate private keys
     ISMINE_WATCH_SOLVABLE = 2,