CGAL 6.1 - 2D and 3D Linear Geometry Kernel

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Kernel::CompareXY_2 Concept Reference
Reference Manual » Concepts » Kernel Function Object Concepts

## Definition

Refines
  `AdaptableBinaryFunction`

See also
  `CGAL::compare_xy()`
  `Kernel::CompareYX_2`

## Operations
A model of this concept must provide:
Comparison_result | operator() (const Kernel::Point_2 &p, const Kernel::Point_2 &q)
| Compares the Cartesian coordinates of points `p` and `q` lexicographically in \( xy\) order: first \( x\)-coordinates are compared, if they are equal, \( y\)-coordinates are compared.