diff --git a/vcg/space/index/octree.h b/vcg/space/index/octree.h
index 328ae419..6815fcd8 100644
--- a/vcg/space/index/octree.h
+++ b/vcg/space/index/octree.h
@@ -310,7 +310,6 @@ public:
             global_mark				= 1;
 			marks.resize(placeholder_count);
 			std::fill(marks.begin(), marks.end(), 0);
-            //memset(&marks[0], 0, sizeof(unsigned char)*placeholder_count);
 
             std::sort(placeholders.begin(), placeholders.end(), ObjectSorter< NodeType >());
             std::vector< NodePointer > filled_leaves(placeholder_count);
diff --git a/vcg/space/index/octree_template.h b/vcg/space/index/octree_template.h
index 7a2f1d71..96aca827 100644
--- a/vcg/space/index/octree_template.h
+++ b/vcg/space/index/octree_template.h
@@ -28,6 +28,8 @@
 #include <vcg/space/point3.h>
 #include <vcg/space/box3.h>
 #include <vector>
+#include <array>
+#include <assert.h>
 
 
 namespace vcg
@@ -111,7 +113,7 @@ protected:
 		InnerNode() : Node() {}
 		InnerNode(NodePointer parent, int level) : Node(parent, level)
 		{
-			memset(&sons[0], 0, 8*sizeof(Node*));
+			sons.fill(nullptr);
 		}
 
 		inline NodePointer &Son(int sonIndex)
@@ -125,7 +127,7 @@ protected:
 			return false;
 		}
 
-		NodePointer sons[8];
+		std::array<NodePointer, 8> sons;
 	};
 
 	/*
@@ -598,7 +600,8 @@ public:
 		assert( boundingBox.min.Y()<=p.Y() && p.Y()<=boundingBox.max.Y() );
 		assert( boundingBox.min.Z()<=p.Z() && p.Z()<=boundingBox.max.Z() );
 
-		memset(route, NULL, maximumDepth*sizeof(NodePointer));
+		for (unsigned int i = 0; i < maximumDepth; ++i)
+			route[i] = nullptr;
 
 		CenterType path				 = CenterType::Construct(Interize(p));
 		int shift							 = maximumDepth-1;
diff --git a/wrap/io_trimesh/export_idtf.h b/wrap/io_trimesh/export_idtf.h
index ac393c40..e711ee61 100644
--- a/wrap/io_trimesh/export_idtf.h
+++ b/wrap/io_trimesh/export_idtf.h
@@ -159,7 +159,8 @@ public:
 		tga.colourmaptype = 0;
 		tga.imagetype = 2;
 
-		memset(tga.colormapspecs,0,5);
+		for (unsigned int i = 0; i < 5; ++i)
+			tga.colormapspecs[i] = '\0';
 		tga.xstart = (short) im.offset().x();
 		tga.ystart = (short) im.offset().y();
 		tga.height = (short) im.height();
@@ -180,10 +181,10 @@ public:
 			//is a 8-digits binary number code  
 			// always 0 0  |  mirroring | bits 
 			//(future uses)|  image     | for alpha-channel
-			//--------------------------------------------			
-			//     7 6     |      5 4   |      3 2 1 0
 			//--------------------------------------------
-			//     0 0     |      1 0   |      1 0 0 0
+			//     7 6     |     5 4    |      3 2 1 0
+			//--------------------------------------------
+			//     0 0     |     1 0    |      1 0 0 0
 			tga.descriptor = (char) 40;
 			tga.bits = (char) 32;
 		}
diff --git a/wrap/io_trimesh/import_raw.h b/wrap/io_trimesh/import_raw.h
index 44773f55..a617a954 100644
--- a/wrap/io_trimesh/import_raw.h
+++ b/wrap/io_trimesh/import_raw.h
@@ -347,7 +347,9 @@ static int Open( MESH_TYPE &m, const char * filename, bool triangulate=false, in
    //read a new line
 
    ii=0;
-   memset( rawline, 0, 512);
+   for (unsigned int i = 0; i < 512; ++i)
+      rawline[i] = 0;
+   //memset( rawline, 0, 512);
    fread(&(rawline[ii++]),sizeof(char),1,fp);
    while( (rawline[ii-1] != '\n') && (ii<512) ) 
    {