On Tue, 11 Feb 2014 10:58:17 -0000, Tobias Pankrath <tob...@pankrath.net>
wrote:
On Tuesday, 11 February 2014 at 10:10:27 UTC, Regan Heath wrote:
Things like this should "just work"..
File input ...
auto range = input.byLine();
while(!range.empty)
{
range.popFront();
foreach (i, line; range.take(4)) //Error: cannot infer argument types
{
..etc..
}
range.popFront();
}
Tried adding 'int' and 'char[]' or 'auto' .. no dice.
Can someone explain why this fails, and if this is a permanent or
temporary limitation of D/MD.
R
Is foreach(i, val; aggregate) even defined if aggr is not an array or
associated array? It is not in the docs:
http://dlang.org/statement#ForeachStatement
import std.stdio;
struct S1 {
private int[] elements = [9,8,7];
int opApply (int delegate (ref uint, ref int) block) {
foreach (uint i, int n ; this.elements)
block(i, n);
return 0;
}
}
void main()
{
S1 range;
foreach(uint i, int x; range)
{
writefln("%d is %d", i, x);
}
}
R
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