use ptrdiff_t

ImageMagick · Nov 11, 2024 · 31b5121 · 31b5121
1 parent 2f31b22
commit 31b5121
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Showing 4 changed files with 4 additions and 4 deletions.
diff --git a/coders/clipboard.c b/coders/clipboard.c
@@ -191,7 +191,7 @@ static Image *ReadCLIPBOARDImage(const ImageInfo *image_info,
         offset+=12;
     }
   offset+=BMP_HEADER_SIZE;
-  p-=BMP_HEADER_SIZE;
+  p-=(ptrdiff_t)BMP_HEADER_SIZE;
   p[0]='B';
   p[1]='M';
   p[2]=(unsigned char) total_size;

diff --git a/coders/sgi.c b/coders/sgi.c
@@ -877,7 +877,7 @@ static size_t SGIEncode(unsigned char *pixels,size_t length,
     p+=(ptrdiff_t) 8;
     while ((p < limit) && ((*(p-8) != *(p-4)) || (*(p-4) != *p)))
       p+=(ptrdiff_t) 4;
-    p-=8;
+    p-=(ptrdiff_t)8;
     length=(size_t) (p-mark) >> 2;
     while (length != 0)
     {

diff --git a/magick/composite.c b/magick/composite.c
@@ -2332,7 +2332,7 @@ MagickExport MagickBooleanType CompositeImageChannel(Image *image,
           }
         pixels=p;
         if (x_offset < 0)
-          p-=x_offset;
+          p-=(ptrdiff_t)x_offset;
       }
     q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
     if (q == (PixelPacket *) NULL)

diff --git a/magick/compress.c b/magick/compress.c
@@ -333,7 +333,7 @@ MagickExport void Ascii85Encode(Image *image,const unsigned char code)
     p+=(ptrdiff_t) 8;
   }
   image->ascii85->offset=n;
-  p-=4;
+  p-=(ptrdiff_t)4;
   for (n=0; n < 4; n++)
     image->ascii85->buffer[n]=(*p++);
 }