#endif
ti_unique_file = fopen(filename.c_str(), "w");
xbt_assert(ti_unique_file, "Tracefile %s could not be opened for writing: %s", filename.c_str(), strerror(errno));
#endif
ti_unique_file = fopen(filename.c_str(), "w");
xbt_assert(ti_unique_file, "Tracefile %s could not be opened for writing: %s", filename.c_str(), strerror(errno));