Simplify "bool x = y ? true : false" to "bool x = y"

src/blockencodings.cpp

@@ -172,7 +172,7 @@ ReadStatus PartiallyDownloadedBlock::InitData(const CBlockHeaderAndShortTxIDs& c
 bool PartiallyDownloadedBlock::IsTxAvailable(size_t index) const {
     assert(!header.IsNull());
     assert(index < txn_available.size());
-    return txn_available[index] ? true : false;
+    return txn_available[index] != nullptr;
 }
 
 ReadStatus PartiallyDownloadedBlock::FillBlock(CBlock& block, const std::vector<CTransactionRef>& vtx_missing) {

src/rpc/misc.cpp

@@ -212,8 +212,8 @@ UniValue validateaddress(const JSONRPCRequest& request)
 
 #ifdef ENABLE_WALLET
         isminetype mine = pwallet ? IsMine(*pwallet, dest) : ISMINE_NO;
-        ret.push_back(Pair("ismine", (mine & ISMINE_SPENDABLE) ? true : false));
+        ret.push_back(Pair("ismine", bool(mine & ISMINE_SPENDABLE)));
-        ret.push_back(Pair("iswatchonly", (mine & ISMINE_WATCH_ONLY) ? true: false));
+        ret.push_back(Pair("iswatchonly", bool(mine & ISMINE_WATCH_ONLY)));
         UniValue detail = boost::apply_visitor(DescribeAddressVisitor(pwallet), dest);
         ret.pushKVs(detail);
         if (pwallet && pwallet->mapAddressBook.count(dest)) {

src/test/miner_tests.cpp

@@ -260,7 +260,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
     {
         tx.vout[0].nValue -= LOWFEE;
         hash = tx.GetHash();
-        bool spendsCoinbase = (i == 0) ? true : false; // only first tx spends coinbase
+        bool spendsCoinbase = i == 0; // only first tx spends coinbase
         // If we don't set the # of sig ops in the CTxMemPoolEntry, template creation fails
         mempool.addUnchecked(hash, entry.Fee(LOWFEE).Time(GetTime()).SpendsCoinbase(spendsCoinbase).FromTx(tx));
         tx.vin[0].prevout.hash = hash;
@@ -274,7 +274,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
     {
         tx.vout[0].nValue -= LOWFEE;
         hash = tx.GetHash();
-        bool spendsCoinbase = (i == 0) ? true : false; // only first tx spends coinbase
+        bool spendsCoinbase = i == 0; // only first tx spends coinbase
         // If we do set the # of sig ops in the CTxMemPoolEntry, template creation passes
         mempool.addUnchecked(hash, entry.Fee(LOWFEE).Time(GetTime()).SpendsCoinbase(spendsCoinbase).SigOpsCost(80).FromTx(tx));
         tx.vin[0].prevout.hash = hash;
@@ -295,7 +295,7 @@ BOOST_AUTO_TEST_CASE(CreateNewBlock_validity)
     {
         tx.vout[0].nValue -= LOWFEE;
         hash = tx.GetHash();
-        bool spendsCoinbase = (i == 0) ? true : false; // only first tx spends coinbase
+        bool spendsCoinbase = i == 0; // only first tx spends coinbase
         mempool.addUnchecked(hash, entry.Fee(LOWFEE).Time(GetTime()).SpendsCoinbase(spendsCoinbase).FromTx(tx));
         tx.vin[0].prevout.hash = hash;
     }