On 2013-01-15 06:51, Andrei Alexandrescu wrote:
If r is a forward range but not better, this is rather simple:
R rfind(R, E)(R range, E element)
{
for (;;)
{
auto ahead = range.save.find(element);
if (ahead.empty) return range;
range = ahead;
}
}
That example creates an infinite loop. Needs a popFront:
R rfind(R, E)(R range, E element)
{
if (range.empty) return range;
for (;;)
{
auto ahead = range.save;
ahead.popFront();
ahead = ahead.find(element);
if (ahead.empty) return range;
range = ahead;
}
}
Another thing: if the element is not found, I think an empty range should be
returned and not the whole range.
