gcc - initializing a structure array in c with #define -

the following code gives me warning:

tag_info.h:17: warning: missing braces around initializer tag_info.h:17: warning: (near initialization âtag_list_data[0].subtagsâ) 

i have tried alot of things nothing seems working. can please suggest something

typedef struct attr{                 char attr_name[64];                          value_type_t value;                          int mandatory;                   }attr_t;  typedef struct tags {         unsigned int tag_id;                    attr_t *attr_list;                       char *tag_name;                         int tag_type;                            int subtags[html_subtag_num];    }tags_t;  tags_t tag_list_data[150] = {         #include "tag_info.h"         {0,0,0,0,0} };  "tag_info.h" contains : #if defined(tag_define)       #undef tag_define #else       #define tag_define(a,b,c,...) {.tag_id=a, .tag_name=#b, .tag_type=c, ##__va_args__} #endif  tag_define(0,tag_none,0,0), tag_define(1,!--,0,0), tag_define(2,!doctype,0,0), tag_define(3,a, 1, 1, 117, 59,11,118,92,100), 

you initializing subtags if multiple members of tags struct:

typedef struct tags {     ...     int subtags_0;     int subtags_1;     int subtags_2; } tags_t;  tags_t t = { ..., 0, 1, 2 }; 

but array. should initialize single entity.

typedef struct tags {     ...     int subtags[html_subtag_num]; } tags_t;  tags_t t = { .tag_id = 0, ..., { 0, 1, 2 } }; // or  tags_t t = { .tag_id = 0, ..., .subtags = { 0, 1, 2 } }; 

also, don't need use concatenation (##)

 #define tag_define(a,b,c,...) { ..., ## __va_args__} 

in end, should like

 #define tag_define(a,b,c,...) { ..., .subtags = { __va_args__ } }  ...  tags_t tag_list_data[150] = {      ...      { 0,0,0,0,{0}}  } 

instead of

#define tag_define(a,b,c,...) { ..., ##__va_args__} ... tags_t tag_list_data[150] = {    ...    { 0,0,0,0,0 } }