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Only define Until.save() forward ranges

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std.algorithm.Until.save() was defined for all ranges, but should only
be defined when the underlying range is a forward range.
This commit is contained in:
Lars T. Kyllingstad 2011-05-16 15:36:01 +02:00
parent 3b628aeb50
commit dc352eaec9
1 changed files with 22 additions and 19 deletions
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41
std/algorithm.d
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@ -3655,29 +3655,32 @@ struct Until(alias pred, Range, Sentinel) if (isInputRange!Range)
} }
} }
static if (!is(Sentinel == void)) static if (isForwardRange!Range)
@property Until save() {
{ static if (!is(Sentinel == void))
Until result; @property Until save()
{
Until result;
result._input = _input.save; result._input = _input.save;
result._sentinel = _sentinel; result._sentinel = _sentinel;
result._openRight = _openRight; result._openRight = _openRight;
result._done = _done; result._done = _done;
return result; return result;
} }
else else
@property Until save() @property Until save()
{ {
Until result; Until result;
result._input = _input.save; result._input = _input.save;
result._openRight = _openRight; result._openRight = _openRight;
result._done = _done; result._done = _done;
return result; return result;
} }
}
} }
/// Ditto /// Ditto