Re: Conditional compilation inside an array initializer

[Ali Çehreli via Digitalmars-d-learn]

On 01/18/2016 04:38 PM, Adam D. Ruppe wrote:

On Tuesday, 19 January 2016 at 00:33:21 UTC, Johan Engelen wrote:

Is it possible to do conditional compilation inside an array initializer?

No, but you might break it up:

enum inttable_1 = [1,4];
version(smth)
     enum inttable_middle = [5,6];
else
     enum inttable_middle = [];
enum inttable_2 = [8, 1345];

int[] inttable = inttable_1 ~ inttable_middle ~ inttable_2;

I was writing something similar:

int[] table;

// Alternatively, consider 'shared static this()'
static this() {
    const tens  = [ 10, 20 ];
    const hundreds = [ 100, 200 ];
    const thousands = [ 1000, 2000 ];

    table ~= tens;

    version (smth) {
    table ~= hundreds;
    }

    table ~= thousands;
}

version = smth;

void main() {

    import std.stdio;
    writeln(table);
}

Ali