Use unsigned int in Triangle

QTProject/triangle.cpp

@@ -13,7 +13,7 @@ Triangle::Triangle(const Triangle &other) {
     this->w_ = other.w_;
 }
 
-Triangle::Triangle(const QVector<Vertex> &vertex_buffer, int u, int v, int w) {
+Triangle::Triangle(const QVector<Vertex> &vertex_buffer, unsigned int u, unsigned int v, unsigned int w) {
     this->vertex_buffer_ = vertex_buffer;
     this->u_ = u;
     this->v_ = v;
@@ -32,15 +32,15 @@ Vertex Triangle::w() const {
     return vertex_buffer_[w_];
 }
 
-int Triangle::u_idx() const {
+unsigned int Triangle::u_idx() const {
     return u_;
 }
 
-int Triangle::v_idx() const {
+unsigned int Triangle::v_idx() const {
     return v_;
 }
 
-int Triangle::w_idx() const {
+unsigned int Triangle::w_idx() const {
     return w_;
 }
 

QTProject/triangle.h

@@ -23,15 +23,15 @@ class Triangle {
 
         Triangle();
         Triangle(const Triangle &other);
-        Triangle(const QVector<Vertex> &vertex_buffer, int u, int v, int w);
+        Triangle(const QVector<Vertex> &vertex_buffer, unsigned int u, unsigned int v, unsigned int w);
 
         Vertex u() const;
         Vertex v() const;
         Vertex w() const;
 
-        int u_idx() const;
-        int v_idx() const;
-        int w_idx() const;
+        unsigned int u_idx() const;
+        unsigned int v_idx() const;
+        unsigned int w_idx() const;
 
         bool get_shared_edge(Triangle other, Edge &edge_a, Edge &edge_b) const;
 
@@ -44,9 +44,9 @@ class Triangle {
 
     private:
         QVector<Vertex> vertex_buffer_;
-        int u_;
-        int v_;
-        int w_;
+        unsigned int u_;
+        unsigned int v_;
+        unsigned int w_;
 
         void rotate_indices();
         bool get_shared_edge_(const Triangle &other, Edge &edge_a, Edge &edge_b) const;