MrMonopoly/raylib
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fix GetCurrentMonitor() distance calc overflow

Browse Source
This commit is contained in:
Vasilis 2026-05-15 11:27:01 +02:00
parent be9d2e2e9c
commit fe6be2131e
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/platforms/rcore_desktop_glfw.c
View File

@ -883,7 +883,14 @@ int GetCurrentMonitor(void)
int dx = wcx - xclosest; int dx = wcx - xclosest;
int dy = wcy - yclosest; int dy = wcy - yclosest;
int dist = (dx*dx) + (dy*dy);
// Use unsigned int to avoid signed integer overflow UB.
// Note: (-x)^2 == x^2 (mod 2^32), so sign of dx/dy does not matter
unsigned int ux = (unsigned int)dx;
unsigned int uy = (unsigned int)dy;
unsigned int udist = ux*ux + uy*uy;
int dist = (int)udist;
if (dist < closestDist) if (dist < closestDist)
{ {
index = i; index = i;