1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
#pragma once
namespace mapbox {
namespace geometry {
struct empty
{
}; // this Geometry type represents the empty point set, ∅, for the coordinate space (OGC Simple Features).
constexpr bool operator==(empty, empty) { return true; }
constexpr bool operator!=(empty, empty) { return false; }
constexpr bool operator<(empty, empty) { return false; }
constexpr bool operator>(empty, empty) { return false; }
constexpr bool operator<=(empty, empty) { return true; }
constexpr bool operator>=(empty, empty) { return true; }
} // namespace geometry
} // namespace mapbox
|
