Expression: invalid comparator in Windows Debug Build

[riggskevinp]

This comparator looks correct to me but msvc, in debug, seems to find an edge case, no pun intended.

VisiLibity1/src/visilibity.hpp

Line 1855 in d2ff388

Incident_Edge_Compare(const Point &observer,

"Debug Assertion Failed! 
File: C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.29.30133\include\xutility
Line: 1459 Expression: invalid comparator"

Playing around with different floating point comparison techniques didn't yield any results. I'll probably try updating to a newer version of of msvc and see if the same issue persists.
I found a closed issue from 2018 that fixed something similar: https://developercommunity.visualstudio.com/t/expression-invalid-comparator/280935