Re: [boost] difference_type size()?

On Tuesday, October 18, 2011 23:30:03 Olaf van der Spek wrote:

Hi,

iterator_range returns a signed size. Is this correct? IMO it should return size_t.

+1 I too stumbled upon this more than once. The common understanding of a valid range is that end() must be reachable by incrementing begin() finite times. Making the size signed makes little sense to me and it also introduces a problem (rather theoretical, however) when iterator_range is constructed from a very large valid range, whose size exceeds numeric_limits<difference_type>::max().