Add container_of() macro

This will allow to get the parent of an embedded struct.
2021-04-11 15:01:05 +02:00 · 2021-04-11 15:01:05 +02:00 · 08f1fd46c8
parent 2ddf760c09
commit 08f1fd46c8
1 changed files with 3 additions and 0 deletions
--- a/app/src/common.h
+++ b/app/src/common.h
@ -8,4 +8,7 @@
 #define MIN(X,Y) (X) < (Y) ? (X) : (Y)
 #define MAX(X,Y) (X) > (Y) ? (X) : (Y)

+#define container_of(ptr, type, member) \
+    ((type *) (((char *) (ptr)) - offsetof(type, member)))
+
 #endif