File compile-with-g++-v11.patch of Package octave-forge-geometry

Description: Compile with g++ v11
Author: Rafael Laboissière <rafael@debian.org>
Bug-Debian: https://bugs.debian.org/984266
Forwarded: no
Last-Update: 2021-07-06

--- octave-geometry-4.0.0.orig/src/martinez.cpp
+++ octave-geometry-4.0.0/src/martinez.cpp
@@ -26,7 +26,7 @@ void Martinez::print (SweepEvent& e)
 
 // Compare two sweep events
 // Return true means that e1 is placed at the event queue after e2, i.e,, e1 is processed by the algorithm after e2
-bool Martinez::SweepEventComp::operator() (SweepEvent* e1, SweepEvent* e2) {
+bool Martinez::SweepEventComp::operator() (SweepEvent* e1, SweepEvent* e2) const {
 	if (e1->p.x > e2->p.x) // Different x-coordinate
 		return true;
 	if (e2->p.x > e1->p.x) // Different x-coordinate
@@ -40,7 +40,7 @@ bool Martinez::SweepEventComp::operator(
 }
 
 // e1 and a2 are the left events of line segments (e1->p, e1->other->p) and (e2->p, e2->other->p)
-bool Martinez::SegmentComp::operator() (SweepEvent* e1, SweepEvent* e2) {
+bool Martinez::SegmentComp::operator() (SweepEvent* e1, SweepEvent* e2) const {
 	if (e1 == e2)
 		return false;
 	if (signedArea (e1->p, e1->other->p, e2->p) != 0 || signedArea (e1->p, e1->other->p, e2->other->p) != 0) {
--- octave-geometry-4.0.0.orig/src/martinez.h
+++ octave-geometry-4.0.0/src/martinez.h
@@ -38,7 +38,7 @@ private:
 
 	struct SweepEvent;
 	struct SegmentComp : public binary_function<SweepEvent*, SweepEvent*, bool> { // for sorting edges in the sweep line
-		bool operator() (SweepEvent* e1, SweepEvent* e2);
+		bool operator() (SweepEvent* e1, SweepEvent* e2) const;
 	};
 	
 	struct SweepEvent {
@@ -65,7 +65,7 @@ private:
 	static void print (SweepEvent& e); // This function is intended for debugging purposes
 
 	struct SweepEventComp : public binary_function<SweepEvent*, SweepEvent*, bool> { // for sortening events
-		bool operator() (SweepEvent* e1, SweepEvent* e2);
+		bool operator() (SweepEvent* e1, SweepEvent* e2) const;
 	};
 
 	/** @brief Event Queue */
--- octave-geometry-4.0.0.orig/src/polygon.cpp
+++ octave-geometry-4.0.0/src/polygon.cpp
@@ -94,7 +94,7 @@ void Polygon::move (double x, double y)
 namespace { // start of anonymous namespace
 	struct SweepEvent;
 	struct SegmentComp : public binary_function<SweepEvent*, SweepEvent*, bool> {
-		bool operator() (SweepEvent* e1, SweepEvent* e2);
+		bool operator() (SweepEvent* e1, SweepEvent* e2) const;
 	};
 
 	struct SweepEvent {
@@ -117,7 +117,7 @@ namespace { // start of anonymous namesp
 	};
 
 	struct SweepEventComp : public binary_function<SweepEvent*, SweepEvent*, bool> {
-		bool operator() (SweepEvent* e1, SweepEvent* e2) {
+		bool operator() (SweepEvent* e1, SweepEvent* e2) const {
 			if (e1->p.x < e2->p.x) // Different x coordinate
 				return true;
 			if (e2->p.x < e1->p.x) // Different x coordinate
@@ -133,7 +133,7 @@ namespace { // start of anonymous namesp
 
 } // end of anonymous namespace
 
-bool SegmentComp::operator() (SweepEvent* e1, SweepEvent* e2) {
+bool SegmentComp::operator() (SweepEvent* e1, SweepEvent* e2) const {
 	if (e1 == e2)
 		return false;
 	if (signedArea (e1->p, e1->other->p, e2->p) != 0 || signedArea (e1->p, e1->other->p, e2->other->p) != 0) {