STRV_FOREACH_BACWARDS: start at the tail of the list

Otherwise, the user would have to manually initialize the pointer. Nobody currently uses this code,
so the change in behaviour sohuld be fine.

diff --git a/src/shared/strv.h b/src/shared/strv.h
index f6fb033a8ca3a6f325d0480ae97b61f0f247b6fa..571ea38a7ff046b4ac804116b267aaaae93e9d1c 100644 (file)
--- a/src/shared/strv.h
+++ b/src/shared/strv.h
@@ -75,7 +75,8 @@ bool strv_overlap(char **a, char **b) _pure_;
         for ((s) = (l); (s) && *(s); (s)++)
 
 #define STRV_FOREACH_BACKWARDS(s, l)            \
-        for (; (l) && ((s) >= (l)); (s)--)
+        STRV_FOREACH(s, l) ;                    \
+                for ((s)--; (l) && ((s) >= (l)); (s)--)
 
 #define STRV_FOREACH_PAIR(x, y, l)               \
         for ((x) = (l), (y) = (x+1); (x) && *(x) && *(y); (x) += 2, (y) = (x + 1))