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-rw-r--r--src/common.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/common.c b/src/common.c
index 4b72e39..96548d9 100644
--- a/src/common.c
+++ b/src/common.c
@@ -254,7 +254,9 @@ xstrndup (const char *s, size_t n)
// --- Double-linked list helpers ----------------------------------------------
-// The links of the list need to have the members `prev' and `next'.
+#define LIST_HEADER(type) \
+ struct type *next; \
+ struct type *prev;
#define LIST_PREPEND(head, link) \
BLOCK_START \
@@ -562,8 +564,7 @@ error_propagate (struct error **destination, struct error *source)
struct str_map_link
{
- struct str_map_link *next; ///< The next link in a chain
- struct str_map_link *prev; ///< The previous link in a chain
+ LIST_HEADER (str_map_link)
void *data; ///< Payload
size_t key_length; ///< Length of the key without '\0'