On Monday, 18 March 2013 at 07:27:21 UTC, Knud Soerensen wrote:
Hi
I am trying to generate 2 arrays which is modifications of
clist.
But I am having some problems, how would you do it ?
#!/usr/bin/rdmd
import std.stdio;
import std.algorithm;
void main()
{
bool[][][] clist=[[[true, true], [false, true]],[[true,
false], [true,
true]],[[false, true], [true, true]]];
auto x=0;
writeln(clist);
auto fpos=delegate bool(bool[][]
a){return(a[x]!=[true,false]);};
auto fneg=delegate bool(bool[][]
a){return(a[x]!=[false,true]);};
writeln("pos:",map!(delegate (bool[][] a){a[x][0]=true; return
a;})(filter!(fpos)(clist)));
writeln("neg:",map!(delegate (bool[][] a){a[x][1]=true; return
a;})(filter!(fneg)(clist)));
}
The code outputs:
[[[true, true], [false, true]], [[true, false], [true, true]],
[[false,
true], [true, true]]]
pos:[[[true, true], [false, true]], [[true, true], [true,
true]]]
neg:[[[true, true], [false, true]], [[true, true], [true,
true]],[[true,
true], [true, true]]]
But I should be
[[[true, true], [false, true]], [[true, false], [true, true]],
[[false,
true], [true, true]]]
pos:[[[true, true], [false, true]], [[true, true], [true,
true]]]
neg:[[[true, true], [false, true]], [[true, true], [true,
true]]]
Hope you can help.
First writeln() actually edit the original array, so when you
filter it for the second array, fneg gives true for all
clist[][][] elements.
