[fix](sample)(cpp) fix the condition of breaking for loop in function (#8497)

2022-03-18 09:37:48 +08:00
parent 25cdd0be1a
commit ac9acc8e9d
1 changed files with 1 additions and 1 deletions
--- a/samples/connect/cpp/doris_client.cpp
+++ b/samples/connect/cpp/doris_client.cpp
@ -74,7 +74,7 @@ bool DorisClient::exec(const string& sql) {
        std::cout << "Query result:" << std::endl;
        for (int i = 0; i < num_rows; i++) {
            _row = mysql_fetch_row(_result);
-            if (_row < 0) {
+            if (_row == nullptr) {
                break;
            }
            for (int j = 0; j < num_fields; j++) {