Minor warning fixes

core/rasterization.cpp

@@ -33,7 +33,7 @@ void distanceSignCorrection(const BitmapRef<float, 1> &sdf, const Shape &shape,
 template <int N>
 static void multiDistanceSignCorrection(const BitmapRef<float, N> &sdf, const Shape &shape, const Projection &projection, FillRule fillRule) {
     int w = sdf.width, h = sdf.height;
-    if (!(w*h))
+    if (!(w && h))
         return;
     Scanline scanline;
     bool ambiguous = false;

core/save-bmp.cpp

@@ -1,5 +1,7 @@
 
+#ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
+#endif
 
 #include "save-bmp.h"
 

core/save-tiff.cpp

@@ -1,5 +1,7 @@
 
+#ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
+#endif
 
 #include "save-tiff.h"
 

core/shape-description.cpp

@@ -1,5 +1,8 @@
 
+#ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
+#endif
+
 #include "shape-description.h"
 
 #include <cstdlib>

ext/import-svg.cpp

@@ -1,6 +1,11 @@
 
+#ifndef _USE_MATH_DEFINES
 #define _USE_MATH_DEFINES
+#endif
+#ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
+#endif
+
 #include "import-svg.h"
 
 #ifndef MSDFGEN_DISABLE_SVG

ext/save-png.cpp

@@ -1,5 +1,8 @@
 
+#ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
+#endif
+
 #include "save-png.h"
 
 #include <cstdio>

main.cpp

@@ -8,8 +8,13 @@
 
 #ifdef MSDFGEN_STANDALONE
 
+#ifndef _USE_MATH_DEFINES
 #define _USE_MATH_DEFINES
+#endif
+#ifndef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS
+#endif
+
 #include <cstdlib>
 #include <cstdio>
 #include <cmath>