voronoi warning: conversion from '__int64' to 'const int' at insert(const Segment& segment, VB* vb)

My datatype is int64, and for some reason Boost is converting it to int.
` struct Point { int64 X, Y; } `

> polygon\voronoi.hpp(68,8): warning C4244: 'argument': conversion from '__int64' to 'const int', possible loss of data

```c++
template
typename enable_if<
typename gtl_if<
typename is_segment_concept<
typename geometry_concept::type
>::type
>::type,
std::size_t
>::type insert(const Segment& segment, VB* vb) {
return vb->insert_segment(
x(low(segment)), y(low(segment)), // this is where the warning comes from
x(high(segment)), y(high(segment)));
}
```

Maybe I'm doing something wrong, please advise, and maybe it is similar to [this](https://github.com/boostorg/geometry/issues/629).