that is bug?

[David Nadlinger]

On Saturday, 7 April 2018 at 09:07:48 UTC, sdvcn wrote:
>         true?stt="AA":stt="BB";    <<<<-----///Out:BB
> 	writeln(stt);

As I just pointed out in Ali's bug report [1], this is correct, as

     true ? stt = "AA" : stt = "BB"

means

     (true ? (stt = "AA") : stt) = "BB",

in accordance to D's grammar [2]:

AssignExpression:
     ConditionalExpression
     ConditionalExpression = AssignExpression
     […]

We should probably require explicit parentheses here. Relying on 
this behaviour is just asking for trouble anyway, as evidenced by 
the amount of confusion in this thread.

  — David



[1] https://issues.dlang.org/show_bug.cgi?id=18743
[2] https://dlang.org/spec/expression.html#assign_expressions