From f7a34e70811b846a2878ed84d1c973dd935b82b3 Mon Sep 17 00:00:00 2001
From: Konstantin Leontev <Konstantin.LEONTEV@opencascade.com>
Date: Mon, 16 Oct 2023 16:08:16 +0100
Subject: [PATCH] [bos #37951][EDF 25230] SIGSEGV with MakeVertexInsideFace.
 Added check for an uninitialized curve.

---
 src/GEOMAlgo/GEOMAlgo_AlgoTools.cxx | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/GEOMAlgo/GEOMAlgo_AlgoTools.cxx b/src/GEOMAlgo/GEOMAlgo_AlgoTools.cxx
index 505ec6a8f..511de81ac 100644
--- a/src/GEOMAlgo/GEOMAlgo_AlgoTools.cxx
+++ b/src/GEOMAlgo/GEOMAlgo_AlgoTools.cxx
@@ -1292,6 +1292,13 @@ gp_Pnt GetMidPnt2d(const TopoDS_Face&     theFace,
       const TopoDS_Edge& anEdge = aWexp.Current();
       if (!aUsedEmap.Add(anEdge)) continue;
       BRepAdaptor_Curve2d aBAcurve2d (anEdge, theFace);
+      // Initialization of curve could fail in constructor,
+      // so we need to check if we actually have a curve here.
+      if (!aBAcurve2d.Curve())
+      {
+        continue;
+      }
+
       Standard_Real aDelta = (aBAcurve2d.LastParameter() - aBAcurve2d.FirstParameter())/aNbSamples;
       for (Standard_Integer ii = 0; ii < aNbSamples; ii++)
       {
-- 
2.30.2