Tree Tree -4 years ago 68
C Question

Why doesn't my strcut contain this member?

I wrote the following code:

#include <stdio.h>
#include <stdlib.h>


typedef struct
{
int month;
int day;
int hour;
int minutes;
}primaries_date;

typedef struct
{
int all_members;
char *country;
primaries_date date;
}usa_primaries;

typedef struct node *ptr;

typedef struct node
{
usa_primaries up;
ptr next;
}Node;



void add(ptr usa_primaries *hptr, int all_members, char *con, int month, int day, int hour, int minutes)
{
ptr p;
ptr q;
ptr t;
t = malloc(sizeof(Node));
if(!t)
{
printf("Cannot build list");
exit(0);
}

t->all_members = members;
t->county = con;
t->date->month = d->month;
t->date->day = d->day;
t->date->hour = d->hour;

while( (p1) )
{
if( p->date->month >= month || p->date->day >= day || p->date->hour >= hour || p->date->minutes >= minutes )
{
q = p;
p = p->next;
}
}

if(p == *hptr)
{
*hptr = t; /*Resetting head. Assigning to the head t*/
t->next = p;
}
else
{
q->next = t;
t->next = p;
}
}


int main()
{
ptr h;
int month, day, hour, minutes;
int all_memebers; /*Declaration of all_members*/
char *county;
char member;
printf("Please enter the day");
scanf("%d",&day);
printf("Please enter the month");
scanf("%d",&month);
printf("Please enter the hour");
scanf("%d",&hour);
printf("Please enter the minutes");
scanf("%d",&minutes);
printf("Is this an all-member candidate? Y/N");
scanf("%c",&member);
if(member == 'Y')
all_members = 1;
else
all_members = 0;
printf("Please enter the country");
scanf("%s",&county);

add(&h,all_members,country,month,day,hour,minutes);

return 0;
}


I got this error:

usa.c: In function ���add���:
usa.c:42:6: error: ���struct node��� has no member named ���all_members���
t->all_members = members;
^


I don't really understand why this error occurred, since all_members is declared in the structure usa_primaries, and the structure node, contains the structure usa_primaries within it.

Why was this error displayed and how can I fix it?

Answer Source

Node doesn't have an all_members. It has a usa_primaries, and that has all_members. Therefore:

t->up.all_members
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