X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fbasic%2Fstrv.h;h=dafb4fdc1ba2fee161496bc9153d5232faa55360;hp=c95a637b43d811b229b5eddf7328c2970142207a;hb=9b00a533195b7fec54a791ca02090e0799214770;hpb=65a63c6468ba3ecfef370c477d03e39cc15e7e92

diff --git a/src/basic/strv.h b/src/basic/strv.h
index c95a637b4..dafb4fdc1 100644
--- a/src/basic/strv.h
+++ b/src/basic/strv.h
@@ -90,9 +90,9 @@ static inline bool strv_isempty(char * const *l) {
 char **strv_split(const char *s, const char *separator);
 #if 0 /// UNNEEDED by elogind
 char **strv_split_newlines(const char *s);
+#endif // 0
 
 int strv_split_extract(char ***t, const char *s, const char *separators, ExtractFlags flags);
-#endif // 0
 
 char *strv_join(char **l, const char *separator);
 #if 0 /// UNNEEDED by elogind
@@ -110,10 +110,13 @@ bool strv_overlap(char **a, char **b) _pure_;
 #define STRV_FOREACH(s, l)                      \
         for ((s) = (l); (s) && *(s); (s)++)
 
-#define STRV_FOREACH_BACKWARDS(s, l)            \
-        STRV_FOREACH(s, l)                      \
-                ;                               \
-        for ((s)--; (l) && ((s) >= (l)); (s)--)
+#define STRV_FOREACH_BACKWARDS(s, l)                                \
+        for (s = ({                                                 \
+                        char **_l = l;                              \
+                        _l ? _l + strv_length(_l) - 1U : NULL;      \
+                        });                                         \
+             (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))
@@ -157,6 +160,11 @@ void strv_print(char **l);
         })
 
 #define STR_IN_SET(x, ...) strv_contains(STRV_MAKE(__VA_ARGS__), x)
+#define STRPTR_IN_SET(x, ...)                                    \
+        ({                                                       \
+                const char* _x = (x);                            \
+                _x && strv_contains(STRV_MAKE(__VA_ARGS__), _x); \
+        })
 
 #define FOREACH_STRING(x, ...)                               \
         for (char **_l = ({                                  \