eliminate compiler warning

Cristy · Cristy · commit fbcc1066e921 · 2025-06-23T10:50:23.000-04:00
diff --git a/coders/pnm.c b/coders/pnm.c
@@ -1777,7 +1777,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo *image_info,Image *image)
           {
             if (q != pixels)
               {
-                if ((q-pixels+(ssize_t) extent+1) < sizeof(pixels))
+                if ((size_t) (q-pixels+(ssize_t) extent+1) < sizeof(pixels))
                   *q++=' ';
                 else
                   {

Original file line number	Diff line number	Diff line change
`@@ -1777,7 +1777,7 @@ static MagickBooleanType WritePNMImage(const ImageInfo image_info,Image image)`
`1777`	`1777`	`{`
`1778`	`1778`	`if (q != pixels)`
`1779`	`1779`	`{`
`1780`		`- if ((q-pixels+(ssize_t) extent+1) < sizeof(pixels))`
	`1780`	`+ if ((size_t) (q-pixels+(ssize_t) extent+1) < sizeof(pixels))`
`1781`	`1781`	`*q++=' ';`
`1782`	`1782`	`else`
`1783`	`1783`	`{`