Using enum instead of bool parameter antipattern.

src/Mesh.cpp

@@ -21,18 +21,15 @@ using namespace std;
 namespace Magnum {
 
 Mesh::~Mesh() {
-    for(map<Buffer*, pair<bool, vector<Attribute> > >::iterator it = _buffers.begin(); it != _buffers.end(); ++it)
-        delete it->first;
+    for(auto it: _buffers)
+        delete it.first;
 
     glDeleteVertexArrays(1, &vao);
 }
 
-Buffer* Mesh::addBuffer(bool interleaved) {
+Buffer* Mesh::addBuffer(BufferType interleaved) {
     Buffer* buffer = new Buffer(Buffer::Target::Array);
-    _buffers.insert(pair<Buffer*, pair<bool, vector<Attribute> > >(
-        buffer,
-        pair<bool, vector<Attribute> >(interleaved, vector<Attribute>())
-    ));
+    _buffers.insert(make_pair(buffer, make_pair(interleaved, vector<Attribute>())));
 
     return buffer;
 }
@@ -60,10 +57,10 @@ void Mesh::finalize() {
         glEnableVertexAttribArray(*it);
 
     /* Finalize attribute positions for every buffer */
-    for(map<Buffer*, pair<bool, vector<Attribute> > >::iterator it = _buffers.begin(); it != _buffers.end(); ++it) {
+    for(auto it: _buffers) {
         /* Avoid confustion */
-        bool interleaved = it->second.first;
-        vector<Attribute>& attributes = it->second.second;
+        bool interleaved = it.second.first == BufferType::Interleaved;
+        vector<Attribute>& attributes = it.second.second;
 
         /* Interleaved buffer, set stride and position of first attribute */
         if(interleaved) {
@@ -95,7 +92,7 @@ void Mesh::finalize() {
         }
 
         /* Bind buffer */
-        it->first->bind();
+        it.first->bind();
 
         /* Bind all attributes to this buffer */
         for(vector<Attribute>::const_iterator ait = attributes.begin(); ait != attributes.end(); ++ait)
@@ -113,7 +110,7 @@ void Mesh::bindAttribute(Buffer* buffer, GLuint attribute, GLint size, Type type
     if(finalized || _attributes.find(attribute) != _attributes.end()) return;
 
     /* If buffer is not managed by this mesh, nothing to do */
-    map<Buffer*, pair<bool, vector<Attribute> > >::iterator found = _buffers.find(buffer);
+    auto found = _buffers.find(buffer);
     if(found == _buffers.end()) return;
 
     Attribute a;

src/Mesh.h

@@ -120,6 +120,20 @@ class MAGNUM_EXPORT Mesh {
             TriangleFan = GL_TRIANGLE_FAN
         };
 
+        /**
+         * @brief Buffer type
+         *
+         * If storing more than one attribute data in the buffer, the data of
+         * one attribute can be either kept together or interleaved with data
+         * for another attributes, so data for every vertex will be in one
+         * continuous place.
+         * @see addBuffer()
+         */
+        enum class BufferType: bool {
+            Interleaved,    /**< Interleaved buffer */
+            NonInterleaved  /**< Non-interleaved buffer */
+        };
+
         /**
          * @brief Set polygon drawing mode
          *
@@ -214,17 +228,14 @@ class MAGNUM_EXPORT Mesh {
 
         /**
          * @brief Add buffer
-         * @param interleaved   If storing more than one attribute data in the
-         *      buffer, the data of one attribute can be either kept together
-         *      or interleaved with data for another attributes, so data for
-         *      every vertex will be in one continuous place.
+         * @param interleaved   Whether the buffer is interleaved
          *
          * Adds new buffer to the mesh. The buffer can be then filled with
          * Buffer::setData(). See also isInterleaved().
          *
          * @todo Move interleaveability to Buffer itself?
          */
-        Buffer* addBuffer(bool interleaved);
+        Buffer* addBuffer(BufferType interleaved);
 
         /**
          * @brief Whether given buffer is interleaved
@@ -235,7 +246,7 @@ class MAGNUM_EXPORT Mesh {
          */
         inline bool isInterleaved(Buffer* buffer) const {
             auto found = _buffers.find(buffer);
-            return found != _buffers.end() && found->second.first;
+            return found != _buffers.end() && found->second.first == BufferType::Interleaved;
         }
 
         /**
@@ -298,7 +309,7 @@ class MAGNUM_EXPORT Mesh {
          * - boolean value which signalizes whether the buffer is interleaved
          * - list of bound attributes
          */
-        std::map<Buffer*, std::pair<bool, std::vector<Attribute> > > _buffers;
+        std::map<Buffer*, std::pair<BufferType, std::vector<Attribute> > > _buffers;
 
         /**
          * @brief List of all bound attributes