xbt_assert(not path.empty(), "Cannot parse a trace from an empty filename");
xbt_assert(trace_list.find(path) == trace_list.end(), "Refusing to define trace %s twice", path.c_str());
- std::ifstream* f = surf_ifsopen(path);
+ const std::ifstream* f = surf_ifsopen(path);
xbt_assert(not f->fail(), "Cannot open file '%s' (path=%s)", path.c_str(), (boost::join(surf_path, ":")).c_str());
std::stringstream buffer;