Modernize various files

* range-based for loops
* emplace_back instead of push_back
* code style
* C++ headers instead of C headers
* Default operators
* empty stl function

1 files changed, 7 insertions, 9 deletions

diff --git a/src/guiscalingfilter.cpp b/src/guiscalingfilter.cpp
index 1b0dfac79..dc6219b60 100644
--- a/src/guiscalingfilter.cpp
+++ b/src/guiscalingfilter.cpp
@@ -20,7 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "imagefilters.h"
 #include "settings.h"
 #include "util/numeric.h"
-#include <stdio.h>
+#include <cstdio>
 #include "client/renderingengine.h"
 
 /* Maintain a static cache to store the images that correspond to textures
@@ -51,16 +51,14 @@ void guiScalingCache(io::path key, video::IVideoDriver *driver, video::IImage *v
 // Manually clear the cache, e.g. when switching to different worlds.
 void guiScalingCacheClear()
 {
-	for (std::map<io::path, video::IImage *>::iterator it = g_imgCache.begin();
-			it != g_imgCache.end(); ++it) {
-		if (it->second)
-			it->second->drop();
+	for (auto &it : g_imgCache) {
+		if (it.second)
+			it.second->drop();
 	}
 	g_imgCache.clear();
-	for (std::map<io::path, video::ITexture *>::iterator it = g_txrCache.begin();
-			it != g_txrCache.end(); ++it) {
-		if (it->second)
-			RenderingEngine::get_video_driver()->removeTexture(it->second);
+	for (auto &it : g_txrCache) {
+		if (it.second)
+			RenderingEngine::get_video_driver()->removeTexture(it.second);
 	}
 	g_txrCache.clear();
 }