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authorKarl Heuer <kwzh@gnu.org>1994-10-11 07:45:41 +0000
committerKarl Heuer <kwzh@gnu.org>1994-10-11 07:45:41 +0000
commite11a302f2682635c574b0e25359ba89626f9c990 (patch)
treeca3a3c3581e1f02b2a33b8fe0afeaa7de5891b86 /src/buffer.h
parent84d1833ed83fa7899e8d50379b52914d16415ba0 (diff)
downloademacs-e11a302f2682635c574b0e25359ba89626f9c990.tar.gz
(OVERLAY_POSITION): Marker assert now tests substructure.
Diffstat (limited to 'src/buffer.h')
-rw-r--r--src/buffer.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/buffer.h b/src/buffer.h
index 4e2a6495886..d456e1bd68e 100644
--- a/src/buffer.h
+++ b/src/buffer.h
@@ -426,8 +426,9 @@ extern Lisp_Object Vtransient_mark_mode;
/* Return the actual buffer position for the marker P.
We assume you know which buffer it's pointing into. */
-#define OVERLAY_POSITION(P) \
- (XGCTYPE ((P)) == Lisp_Marker ? marker_position ((P)) : (abort (), 0))
+#define OVERLAY_POSITION(P) \
+ (XGCTYPE ((P)) == Lisp_Misc && XMISC ((P))->type == Lisp_Misc_Marker \
+ ? marker_position ((P)) : (abort (), 0))
/* Allocation of buffer text. */