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-rw-r--r--src/fltk-images-rgb-pnm.ads3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/fltk-images-rgb-pnm.ads b/src/fltk-images-rgb-pnm.ads
index f766f84..92743ea 100644
--- a/src/fltk-images-rgb-pnm.ads
+++ b/src/fltk-images-rgb-pnm.ads
@@ -5,6 +5,9 @@ package FLTK.Images.RGB.PNM is
type PNM_Image is new RGB_Image with private;
+ type PNM_Image_Reference (Data : not null access PNM_Image'Class) is limited null record
+ with Implicit_Dereference => Data;
+