消除CppCheck检测的两个漏洞

hikyuu_cpp/hikyuu/KDataBufferImp.cpp

@@ -131,7 +131,7 @@ void KDataBufferImp::_recoverForUpDay() {
         }
         KRecord record = day_list[day_pos];
         int pre_day_pos = day_pos;
-        while (day_list[day_pos].datetime <= phase_end_date && day_pos < day_total) {
+        while (day_pos < day_total && day_list[day_pos].datetime <= phase_end_date) {
             if (day_list[day_pos].lowPrice < record.lowPrice) {
                 record.lowPrice = day_list[day_pos].lowPrice;
             } else if (day_list[day_pos].highPrice > record.highPrice) {

hikyuu_cpp/hikyuu/indicator/IndicatorImp.cpp

@@ -350,11 +350,9 @@ Indicator IndicatorImp::calculate() {
                 //Python中继承的实现会出现bad_weak_ptr错误，通过此方式避免
                 result = clone();
             }
-            return Indicator(result);
-
-        } else {
-            return Indicator();
         }
+            
+        return Indicator(result);
     }
 
     if (!m_need_calculate) {
@@ -443,8 +441,10 @@ Indicator IndicatorImp::calculate() {
     try {
         result = shared_from_this();
     } catch (...) {
+        //Python中继承的实现会出现bad_weak_ptr错误，通过此方式避免
         result = clone();
     }
+
     return Indicator(result);
 }
 

hikyuu_cpp/hikyuu/trade_manage/TradeManager.cpp

@@ -1825,7 +1825,7 @@ PriceList TradeManager
         return result;
 
     size_t i = 0;
-    while (dates[i] < m_init_datetime && i < total) {
+    while (i < total && dates[i] < m_init_datetime) {
         result[i] = 0;
         i++;
     }