basic/list: drop LIST_IS_EMPTY

This was a trivial wrapper that didn't provide any added value. With more
complicated structures like strvs, hashmaps, sets, and arrays, it is possible
to have an empty container. But in case of a list, the list is empty only when
the head is missing.

Also, we generally want the positive condition, so we replace many
if (!LIST_IS_EMPTY(x)) with just if (x).

1 files changed, 0 insertions, 2 deletions

diff --git a/coccinelle/macros.h b/coccinelle/macros.h
index 6a0a64bb05..f44b3f2d26 100644
--- a/coccinelle/macros.h
+++ b/coccinelle/macros.h
@@ -189,8 +189,6 @@
              (i) != (p);                                                \
              (i) = (i)->name##_next ? (i)->name##_next : (head))
 
-#define LIST_IS_EMPTY(head)                                             \
-        (!(head))
 #define LIST_JOIN(name,a,b)                                             \
         do {                                                            \
                 assert(b);                                              \