SCHWED-3473: streams need explicit conversion to bool.

modules/base/src/test_utils/compare_files.cc

@@ -37,8 +37,8 @@ bool compare_files(const String& test, const String& gold_standard)
   }
   String test_line, gold_line;
   while (true) {
-    bool test_read = std::getline(test_stream, test_line);
-    bool gold_read = std::getline(gold_stream, gold_line);
+    bool test_read = static_cast<bool>(std::getline(test_stream, test_line));
+    bool gold_read = static_cast<bool>(std::getline(gold_stream, gold_line));
     if (!test_read && !gold_read) {
       // nothing to read anymore in any of the files
       return true;