From gmp-discuss: Il Lun, 21 Maggio 2018 12:15 pm, Marc Glisse ha scritto: > If m is a > moved-from object, it is fine to assign a new value to it with m = > whatever. That's even what std::swap does. It should also be fine to > read from it, although you can't rely on any specific value so that's > not very useful.
Should the non specific value be somehow valid? With lazy allocation, we should define NaN as an admissible value for mpq, and use it whenever we init a variable that will immediately be overwritten. I did this, internally in mini-mpq: https://gmplib.org/repo/gmp/rev/8e0a2e94ae5a The idea might be useful also for some mpq constructor from double, from string... if not for move. Wile we are looking into this, is there a motivation why we have the assignment "operator=(mpz_class &&z)" for mpq_class, but not a constructor from mpz_class&& ? Ĝis, m -- http://bodrato.it/ _______________________________________________ gmp-devel mailing list gmp-devel@gmplib.org https://gmplib.org/mailman/listinfo/gmp-devel
