Use range-based for loops (C++11) when looping over map elements

Before this commit:

  for (std::map<T1, T2>::iterator x = y.begin(); x != y.end(); ++x) {
  }

After this commit:

  for (auto& x : y) {
  }

1 files changed, 11 insertions, 11 deletions

diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp
index dc358bff95..067eee9dbd 100644
--- a/src/test/coins_tests.cpp
+++ b/src/test/coins_tests.cpp
@@ -81,8 +81,8 @@ public:
         // Manually recompute the dynamic usage of the whole data, and compare it.
         size_t ret = memusage::DynamicUsage(cacheCoins);
         size_t count = 0;
-        for (CCoinsMap::iterator it = cacheCoins.begin(); it != cacheCoins.end(); it++) {
-            ret += it->second.coin.DynamicMemoryUsage();
+        for (const auto& entry : cacheCoins) {
+            ret += entry.second.coin.DynamicMemoryUsage();
             ++count;
         }
         BOOST_CHECK_EQUAL(GetCacheSize(), count);
@@ -189,15 +189,15 @@ BOOST_AUTO_TEST_CASE(coins_cache_simulation_test)
 
         // Once every 1000 iterations and at the end, verify the full cache.
         if (InsecureRandRange(1000) == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
-            for (auto it = result.begin(); it != result.end(); it++) {
-                bool have = stack.back()->HaveCoin(it->first);
-                const Coin& coin = stack.back()->AccessCoin(it->first);
+            for (const auto& entry : result) {
+                bool have = stack.back()->HaveCoin(entry.first);
+                const Coin& coin = stack.back()->AccessCoin(entry.first);
                 BOOST_CHECK(have == !coin.IsSpent());
-                BOOST_CHECK(coin == it->second);
+                BOOST_CHECK(coin == entry.second);
                 if (coin.IsSpent()) {
                     missed_an_entry = true;
                 } else {
-                    BOOST_CHECK(stack.back()->HaveCoinInCache(it->first));
+                    BOOST_CHECK(stack.back()->HaveCoinInCache(entry.first));
                     found_an_entry = true;
                 }
             }
@@ -420,11 +420,11 @@ BOOST_AUTO_TEST_CASE(updatecoins_simulation_test)
 
         // Once every 1000 iterations and at the end, verify the full cache.
         if (InsecureRandRange(1000) == 1 || i == NUM_SIMULATION_ITERATIONS - 1) {
-            for (auto it = result.begin(); it != result.end(); it++) {
-                bool have = stack.back()->HaveCoin(it->first);
-                const Coin& coin = stack.back()->AccessCoin(it->first);
+            for (const auto& entry : result) {
+                bool have = stack.back()->HaveCoin(entry.first);
+                const Coin& coin = stack.back()->AccessCoin(entry.first);
                 BOOST_CHECK(have == !coin.IsSpent());
-                BOOST_CHECK(coin == it->second);
+                BOOST_CHECK(coin == entry.second);
             }
         }