I was thinking to a general *interleave()* algorithm for any
compatible Range of Range but I can't find any smart way to
process each sub range by front, eg:
---
void interleave(RoR)(RoR r)
{
r.each!(a => a.writeln);
}
void main()
{
auto r = [[0,2],[1,3]];
interleave(r);
}
---
will print:
[0,2]
[1,3]
while to interleave i need to take the front of each sub range
before poping each ror element.
Currently I'm here (don't run this ;)) :
---
auto interleave(RoR)(RoR r)
{
alias T = ElementType!r[0];
T[] result;
while (!empty(r[0]))
r.each!(a => (result ~= a.front, a.popFront));
return result;
}
void main()
{
auto r = [[0,2],[1,3]];
interleave(r);
}
---
but it doesn't work because 'a' is not consumed. It looks like
it's saved from the input parameter at each iteration of the
while loop hence it never returns.
Is it possible ?
