diff --git a/intern/cycles/blender/blender_python.cpp b/intern/cycles/blender/blender_python.cpp
index ba9d6181e1c..768c1c589b6 100644
--- a/intern/cycles/blender/blender_python.cpp
+++ b/intern/cycles/blender/blender_python.cpp
@@ -504,7 +504,7 @@ static PyObject *osl_update_node_func(PyObject * /*self*/, PyObject *args)
 				socket_type = "NodeSocketString";
 				data_type = BL::NodeSocket::type_STRING;
 				if(param->validdefault)
-					default_string = param->sdefault[0];
+					default_string = param->sdefault[0].string();
 			}
 			else
 				continue;
diff --git a/intern/cycles/graph/node_xml.cpp b/intern/cycles/graph/node_xml.cpp
index b7a28b427e5..f228da282e9 100644
--- a/intern/cycles/graph/node_xml.cpp
+++ b/intern/cycles/graph/node_xml.cpp
@@ -250,7 +250,7 @@ void xml_read_node(XMLReader& reader, Node *node, xml_node xml_node)
 		}
 	}
 
-	if(node->name)
+	if(!node->name.empty())
 		reader.node_map[node->name] = node;
 }
 
diff --git a/intern/cycles/render/attribute.cpp b/intern/cycles/render/attribute.cpp
index a7450849195..ca167a7c722 100644
--- a/intern/cycles/render/attribute.cpp
+++ b/intern/cycles/render/attribute.cpp
@@ -663,7 +663,7 @@ void AttributeRequestSet::add(AttributeRequestSet& reqs)
 
 void AttributeRequestSet::add_standard(ustring name)
 {
-	if(!name) {
+	if(name.empty()) {
 		return;
 	}
 
diff --git a/intern/cycles/render/image.cpp b/intern/cycles/render/image.cpp
index 2865b0e5e97..ea6991172d0 100644
--- a/intern/cycles/render/image.cpp
+++ b/intern/cycles/render/image.cpp
@@ -24,6 +24,7 @@
 #include "util/util_path.h"
 #include "util/util_progress.h"
 #include "util/util_texture.h"
+#include "util/util_unique_ptr.h"
 
 #ifdef WITH_OSL
 #include <OSL/oslexec.h>
@@ -194,7 +195,7 @@ bool ImageManager::get_image_metadata(const string& filename,
 		return false;
 	}
 
-	ImageInput *in = ImageInput::create(filename);
+	unique_ptr<ImageInput> in(ImageInput::create(filename));
 
 	if(!in) {
 		return false;
@@ -202,7 +203,6 @@ bool ImageManager::get_image_metadata(const string& filename,
 
 	ImageSpec spec;
 	if(!in->open(filename, spec)) {
-		delete in;
 		return false;
 	}
 
@@ -270,7 +270,6 @@ bool ImageManager::get_image_metadata(const string& filename,
 	}
 
 	in->close();
-	delete in;
 
 	return true;
 }
@@ -455,7 +454,7 @@ void ImageManager::tag_reload_image(const string& filename,
 }
 
 bool ImageManager::file_load_image_generic(Image *img,
-                                           ImageInput **in)
+                                           unique_ptr<ImageInput> *in)
 {
 	if(img->filename == "")
 		return false;
@@ -467,7 +466,7 @@ bool ImageManager::file_load_image_generic(Image *img,
 		}
 
 		/* load image from file through OIIO */
-		*in = ImageInput::create(img->filename);
+		*in = unique_ptr<ImageInput>(ImageInput::create(img->filename));
 
 		if(!*in)
 			return false;
@@ -479,8 +478,6 @@ bool ImageManager::file_load_image_generic(Image *img,
 			config.attribute("oiio:UnassociatedAlpha", 1);
 
 		if(!(*in)->open(img->filename, spec, config)) {
-			delete *in;
-			*in = NULL;
 			return false;
 		}
 	}
@@ -494,10 +491,7 @@ bool ImageManager::file_load_image_generic(Image *img,
 	if(!(img->metadata.channels >= 1 && img->metadata.channels <= 4)) {
 		if(*in) {
 			(*in)->close();
-			delete *in;
-			*in = NULL;
 		}
-
 		return false;
 	}
 
@@ -512,7 +506,7 @@ bool ImageManager::file_load_image(Image *img,
                                    int texture_limit,
                                    device_vector<DeviceType>& tex_img)
 {
-	ImageInput *in = NULL;
+	unique_ptr<ImageInput> in = NULL;
 	if(!file_load_image_generic(img, &in)) {
 		return false;
 	}
@@ -575,7 +569,6 @@ bool ImageManager::file_load_image(Image *img,
 		}
 		cmyk = strcmp(in->format_name(), "jpeg") == 0 && components == 4;
 		in->close();
-		delete in;
 	}
 	else {
 		if(FileFormat == TypeDesc::FLOAT) {
diff --git a/intern/cycles/render/image.h b/intern/cycles/render/image.h
index 5d4e99401b2..d7fc31e3ab1 100644
--- a/intern/cycles/render/image.h
+++ b/intern/cycles/render/image.h
@@ -23,6 +23,7 @@
 #include "util/util_image.h"
 #include "util/util_string.h"
 #include "util/util_thread.h"
+#include "util/util_unique_ptr.h"
 #include "util/util_vector.h"
 
 CCL_NAMESPACE_BEGIN
@@ -145,8 +146,7 @@ private:
 	vector<Image*> images[IMAGE_DATA_NUM_TYPES];
 	void *osl_texture_system;
 
-	bool file_load_image_generic(Image *img,
-	                             ImageInput **in);
+	bool file_load_image_generic(Image *img, unique_ptr<ImageInput> *in);
 
 	template<TypeDesc::BASETYPE FileFormat,
 	         typename StorageType,
diff --git a/intern/cycles/util/util_unique_ptr.h b/intern/cycles/util/util_unique_ptr.h
new file mode 100644
index 00000000000..1ceae73172e
--- /dev/null
+++ b/intern/cycles/util/util_unique_ptr.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2011-2013 Blender Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __UTIL_UNIQUE_PTR_H__
+#define __UTIL_UNIQUE_PTR_H__
+
+#include <memory>
+
+CCL_NAMESPACE_BEGIN
+
+using std::unique_ptr;
+
+CCL_NAMESPACE_END
+
+#endif  /* __UTIL_UNIQUE_PTR_H__ */
diff --git a/source/blender/imbuf/intern/oiio/openimageio_api.cpp b/source/blender/imbuf/intern/oiio/openimageio_api.cpp
index f018bfc09d7..34d5cccac84 100644
--- a/source/blender/imbuf/intern/oiio/openimageio_api.cpp
+++ b/source/blender/imbuf/intern/oiio/openimageio_api.cpp
@@ -35,6 +35,11 @@
 #include "utfconv.h"
 #endif
 
+// NOTE: Keep first, BLI_path_util conflicts with OIIO's format.
+#include <memory>
+#include <openimageio_api.h>
+#include <OpenImageIO/imageio.h>
+
 extern "C"
 {
 #include "MEM_guardedalloc.h"
@@ -48,12 +53,10 @@ extern "C"
 #include "IMB_colormanagement_intern.h"
 }
 
-#include <openimageio_api.h>
-#include <OpenImageIO/imageio.h>
-
 OIIO_NAMESPACE_USING
 
 using std::string;
+using std::unique_ptr;
 
 typedef unsigned char uchar;
 
@@ -197,7 +200,6 @@ int imb_save_photoshop(struct ImBuf *ibuf, const char * /*name*/, int flags)
 
 struct ImBuf *imb_load_photoshop(const char *filename, int flags, char colorspace[IM_MAX_SPACE])
 {
-	ImageInput *in = NULL;
 	struct ImBuf *ibuf = NULL;
 	int width, height, components;
 	bool is_float, is_alpha;
@@ -210,7 +212,7 @@ struct ImBuf *imb_load_photoshop(const char *filename, int flags, char colorspac
 
 	colorspace_set_default_role(colorspace, IM_MAX_SPACE, COLOR_ROLE_DEFAULT_BYTE);
 
-	in = ImageInput::create(filename);
+	unique_ptr<ImageInput> in(ImageInput::create(filename));
 	if (!in) {
 		std::cerr << __func__ << ": ImageInput::create() failed:" << std::endl
 		          << OIIO_NAMESPACE::geterror() << std::endl;
@@ -223,7 +225,6 @@ struct ImBuf *imb_load_photoshop(const char *filename, int flags, char colorspac
 	if (!in->open(filename, spec, config)) {
 		std::cerr << __func__ << ": ImageInput::open() failed:" << std::endl
 		          << in->geterror() << std::endl;
-		delete in;
 		return NULL;
 	}
 
@@ -249,19 +250,17 @@ struct ImBuf *imb_load_photoshop(const char *filename, int flags, char colorspac
 	if (!(components >= 1 && components <= 4)) {
 		if (in) {
 			in->close();
-			delete in;
 		}
 		return NULL;
 	}
 
 	if (is_float)
-		ibuf = imb_oiio_load_image_float(in, width, height, components, flags, is_alpha);
+		ibuf = imb_oiio_load_image_float(in.get(), width, height, components, flags, is_alpha);
 	else
-		ibuf = imb_oiio_load_image(in, width, height, components, flags, is_alpha);
+		ibuf = imb_oiio_load_image(in.get(), width, height, components, flags, is_alpha);
 
 	if (in) {
 		in->close();
-		delete in;
 	}
 
 	if (!ibuf)