https://svn.boost.org/trac10/ticket/10195 <p> I am performing intersections between polygons, with points represented using 64-bit integer coordinates. If I use signed ints (int64_t), the intersection operations are correct. If I use unsigned ints (uint64_t), the returned intersection polygon collection is simply one of the two polygons I originally handed in. </p> <p> The underlying intersection algorithm must require signed information, but this fact is not communicated to users. As a result, the output of unsigned int operations can appear nonsensical. Added documentation is appreciated. Adding an actual exception when attempting to do unsigned-int-based intersections would be even better. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/10195 Trac 1.4.3