On Saturday, 24 December 2016 at 00:55:01 UTC, Yuxuan Shui wrote:
I tried this:

immutable int[char] xx = ['Q':0, 'B':1, 'N':2, 'R':3, 'P':4];

And got a "non-constant expression" error (with or without 'immutable').

What's the correct way?

This works:

void main() {
    immutable int[char] xx = ['Q':0, 'B':1, 'N':2, 'R':3, 'P':4];
}

If you want to initialize global variable, then

immutable int[char] xx;
shared static this() {
        xx = ['Q':0, 'B':1, 'N':2, 'R':3, 'P':4];
}

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