Add a compile-time check to ensure that filetype

and filetype_letter have the same number of elements.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/ls.c b/src/ls.c
index 85a4bc7e7..40de927bf 100644
--- a/src/ls.c
+++ b/src/ls.c
@@ -162,9 +162,12 @@ enum filetype
 
 /* Display letters and indicators for each filetype.
    Keep these in sync with enum filetype.  */
-
 static char const filetype_letter[] = "?pcdb-lswd";
 
+/* Ensure that filetype and filetype_letter have the same
+   number of elements.  */
+verify (sizeof filetype_letter - 1 == arg_directory + 1);
+
 #define FILETYPE_INDICATORS				\
   {							\
     C_ORPHAN, C_FIFO, C_CHR, C_DIR, C_BLK, C_FILE,	\