How to test if a line segment intersects an axis-aligned rectange in 2D?

Question

How to test if a line segment intersects an axis-aligned rectange in 2D? The segment is defined with its two ends: p1, p2. The rectangle is defined with top-left and bottom-

Answer 1

A quick Google search popped up a page with C++ code for testing the intersection.

Basically it tests the intersection between the line, and every border or the rectangle.

Rectangle and line intersection code