Some changes to the design of base-writer.hpp

luprex/cpp/core/drivenengine.cpp

@@ -235,8 +235,12 @@ class ReplayLogfile : public BaseReader<ReplayLogfile>, public std::ifstream {
     using std::ifstream::ifstream;
 public:
     using read_string_type = std::string;
-    void read_bytes_into(char *n, size_t size) { read(n, size); }
-    bool read_beyond_eof() { return !good(); }
+    void read_bytes_into(char *n, size_t size) {
+        read(n, size);
+        if (!good()) {
+            memset(n, 0, size);
+        }
+    }
     void raise_string_too_long() {
         fprintf(stderr, "string in logfile is too long");
         std::abort();