c语言container_of 编译报错

求指针ptr所在的结构体实例的首地址，

#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#define container_of(ptr, type, member) ({                      \
    const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
    (type *)( (char *)__mptr - offsetof(type,member) );})

编译报错

 1 src/utils/dds_rbtree.c: In function ‘rbtree_get_prev’:
 2 src/utils/rbtree.h:54:11: error: unknown type name ‘typeof’
 3      const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
 4            ^
 5 src/utils/rbtree.h:76:37: note: in expansion of macro ‘container_of’
 6  #define rb_entry(ptr, type, member) container_of(ptr, type, member)
 7                                      ^~~~~~~~~~~~
 8 src/utils/dds_rbtree.c:377:5: note: in expansion of macro ‘rb_entry’
 9      rb_entry(pTargetBaseNode, RB_DATA_NODE_T, stRbBaseNode);
10      ^~~~~~~~
11 src/utils/rbtree.h:54:28: error: expected ‘)’ before numeric constant
12      const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
13                             ^
14 src/utils/rbtree.h:76:37: note: in expansion of macro ‘container_of’
15  #define rb_entry(ptr, type, member) container_of(ptr, type, member)
16                                      ^~~~~~~~~~~~
17 src/utils/dds_rbtree.c:377:5: note: in expansion of macro ‘rb_entry’
18      rb_entry(pTargetBaseNode, RB_DATA_NODE_T, stRbBaseNode);
19      ^~~~~~~~
20 src/utils/rbtree.h:54:30: error: expected ‘)’ before ‘->’ token
21      const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
22                               ^
23 src/utils/rbtree.h:76:37: note: in expansion of macro ‘container_of’
24  #define rb_entry(ptr, type, member) container_of(ptr, type, member)
25                                      ^~~~~~~~~~~~
26 src/utils/dds_rbtree.c:377:5: note: in expansion of macro ‘rb_entry’
27      rb_entry(pTargetBaseNode, RB_DATA_NODE_T, stRbBaseNode);
28      ^~~~~~~~
29 src/utils/rbtree.h:54:41: error: expected ‘)’ before ‘*’ token
30      const typeof( ((type *)0)->member ) *__mptr = (ptr);    \

原因为编译是添加了c99选项，typeof为gcc扩展功能，识别为函数，c99不支持，删去--std=c99

LD_C_FLAGS   += -ldl -lm -lpthread -lrt --std=c99

C++情况下参考

参考：https://blog.csdn.net/linuxsmallping/article/details/83418546