3 files changed, 7 insertions, 7 deletions
diff --git a/source/blender/freestyle/intern/geometry/FitCurve.cpp b/source/blender/freestyle/intern/geometry/FitCurve.cpp
index 5682ccc9298..66914929960 100644
--- a/source/blender/freestyle/intern/geometry/FitCurve.cpp
+++ b/source/blender/freestyle/intern/geometry/FitCurve.cpp
@@ -20,9 +20,9 @@
  * \brief from "Graphics Gems", Academic Press, 1990
  */
 
+#include <cmath>
+#include <cstdio>
 #include <cstdlib>  // for malloc and free
-#include <math.h>
-#include <stdio.h>
 
 #include "FitCurve.h"
 
diff --git a/source/blender/freestyle/intern/geometry/GeomCleaner.cpp b/source/blender/freestyle/intern/geometry/GeomCleaner.cpp
index b1d0a6c7e2a..6a499c07061 100644
--- a/source/blender/freestyle/intern/geometry/GeomCleaner.cpp
+++ b/source/blender/freestyle/intern/geometry/GeomCleaner.cpp
@@ -29,9 +29,9 @@
 #  endif
 #endif
 
+#include <cstdio>
 #include <list>
 #include <map>
-#include <stdio.h>
 
 #include "GeomCleaner.h"
 
diff --git a/source/blender/freestyle/intern/geometry/Noise.cpp b/source/blender/freestyle/intern/geometry/Noise.cpp
index 7c42c332370..e3ea2ac154f 100644
--- a/source/blender/freestyle/intern/geometry/Noise.cpp
+++ b/source/blender/freestyle/intern/geometry/Noise.cpp
@@ -19,10 +19,10 @@
  * \brief Class to define Perlin noise
  */
 
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
+#include <cmath>
+#include <cstdio>
+#include <cstdlib>
+#include <ctime>
 
 #include "BLI_compiler_attrs.h"
 #include "BLI_rand.h"