Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
これがシナリオです!(簡略化)
double val1 = 0.0; double? val2 = val1;
なぜval2はNaNになるのでしょうか?
簡単に言えば、そうではなく、そうでもありません。
非NaNdoubleをaに割り当てた結果は、非NaN値のaになりますdouble?。double?この場合0.0
double
double?
0.0