Error with implicit cast of ^^=

[Ali Çehreli]

On 7/13/21 4:12 AM, wjoe wrote:
 > ```D
 > byte x = some_val;
 > long y = some_val;
 >
 > x ^^= y; // Error:  cannot implicitly convert expression
 > pow(cast(long)cast(int)x, y) of type long to byte

[...]

 > I rewrote it to something like
 > ```D
 > mixin("x = cast(typeof(x))(x" ~ op[0..$-1] ~ " y);");
 > ```
 > but I'm curious if there's a less convoluted way.

If it's important, std.conv.to checks the value:

import std.conv;

void main() {
   byte x = 2;
   long y = 6;
   x = (x ^^ y).to!(typeof(x));
}

For example, run-time error if y == 7.

Ali