From c7e8b87ab89fe9dd33afdc0df763cb371f0b5b41 Mon Sep 17 00:00:00 2001
From: Jan Zapletal <jan.zapletal@vsb.cz>
Date: Tue, 29 Mar 2022 15:51:01 +0200
Subject: [PATCH] MAINT: osx support

---
 Box.hpp        |  2 ++
 CloudUtils.hpp |  2 +-
 Graph.hpp      | 12 ++++++------
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/Box.hpp b/Box.hpp
index 87646f0..839be91 100644
--- a/Box.hpp
+++ b/Box.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <limits>
+
 #include "Vector.hpp"
 
 namespace Pvl {
diff --git a/CloudUtils.hpp b/CloudUtils.hpp
index 0bf4113..7fcb195 100644
--- a/CloudUtils.hpp
+++ b/CloudUtils.hpp
@@ -146,7 +146,7 @@ void orientNormals(Cloud& cloud, Normals& normals) {
     }
 
     // declare component 0 as correct
-    for (int c = 1; c < componentIdx; ++c) {
+    for (std::size_t c = 1; c < componentIdx; ++c) {
         int votes = 0;
         for (std::size_t i = 0; i < cloud.size(); ++i) {
             if (indices[i] != c) {
diff --git a/Graph.hpp b/Graph.hpp
index 7ea199f..5ab0293 100644
--- a/Graph.hpp
+++ b/Graph.hpp
@@ -42,10 +42,10 @@ class Handle {
     }
 };
 
-class HalfEdge;
-class Vertex;
-class Face;
-class Edge;
+struct HalfEdge;
+struct Vertex;
+struct Face;
+struct Edge;
 class Graph;
 
 using HalfEdgeHandle = Handle<HalfEdge>;
@@ -253,8 +253,8 @@ struct Edge {};
 
 // template<typename Vertex, typename HalfEdge, typename Face>
 class Graph {
-    friend class Vertex;
-    friend class Face;
+    friend struct Vertex;
+    friend struct Face;
 
     std::vector<Vertex> vertices_;
     std::vector<Face> faces_;