XBT_PUBLIC(void) surf_parse_open(const char *file);
XBT_PUBLIC(void) surf_parse_close();
-XBT_PUBLIC(void) surf_parse_assert(bool cond, const char *fmt, ...) XBT_ATTRIB_PRINTF(2,3);
-XBT_PUBLIC(void) XBT_ATTRIB_NORETURN surf_parse_error(const char *msg,...) XBT_ATTRIB_PRINTF(1,2);
+XBT_PUBLIC(void) surf_parse_assert(bool cond, std::string msg);
+XBT_PUBLIC(void) XBT_ATTRIB_NORETURN surf_parse_error(std::string msg);
XBT_PUBLIC(void) surf_parse_assert_netpoint(char* hostname, const char* pre, const char* post);
XBT_PUBLIC(void) surf_parse_warn(const char *msg,...) XBT_ATTRIB_PRINTF(1,2);