hlfw.ca

Info  •  Files  •  Log  •  Branches

Add in badrect

--- /dev/null

+++ b/libdraw/badrect.c

@@ -1,0 +1,20 @@

+#include "draw.h"

+

+/*

+ * check for zero, negative size or insanely huge rectangle.

+ */

+int

+badrect(Rectangle r)

+{

+	int x, y;

+	unsigned int z;

+

+	x = Dx(r);

+	y = Dy(r);

+	if(x > 0 && y > 0){

+		z = x*y;

+		if(z/x == y && z < 0x10000000)

+			return 0;

+	}

+	return 1;

+}

--- a/libdraw/meson.build

+++ b/libdraw/meson.build

@@ -1,6 +1,7 @@

 libdraw_src = [

     'alloc.c',

     'arith.c',

+    'badrect.c',

     'buildfont.c',

     'bytesperline.c',

     'chan.c',