Replace use of deprecated C++ headers

src/engine/alsadevicefinder.cpp

@@ -19,8 +19,8 @@
 
 #include "config.h"
 
-#include <stdio.h>
-#include <errno.h>
+#include <cstdio>
+#include <cerrno>
 #include <alsa/asoundlib.h>
 #include <boost/scope_exit.hpp>
 

src/engine/gstengine.cpp

@@ -27,7 +27,7 @@
 #include <gio/gio.h>
 #include <memory>
 #include <vector>
-#include <math.h>
+#include <cmath>
 #include <string>
 
 #include <gst/gst.h>

src/engine/gstenginepipeline.cpp

@@ -21,9 +21,9 @@
 
 #include "config.h"
 
-#include <stdlib.h>
-#include <stdint.h>
-#include <string>
+#include <cstdlib>
+#include <cstdint>
+#include <cstring>
 #include <glib.h>
 #include <glib-object.h>
 #include <gst/gst.h>

src/engine/xineengine.cpp

@@ -23,11 +23,11 @@
 #  define METRONOM_INTERNAL
 #endif
 
-#include <stdint.h>
+#include <cstdint>
 #include <sys/types.h>
-#include <time.h>
+#include <ctime>
 #include <unistd.h>
-#include <errno.h>
+#include <cerrno>
 #include <xine.h>
 #ifdef XINE_ANALYZER
 #  include <xine/metronom.h>

src/engine/xineengine.h

@@ -23,7 +23,7 @@
 #endif
 
 #include <memory>
-#include <stdint.h>
+#include <cstdint>
 #include <sys/types.h>
 #include <xine.h>