CODEWITHSUNDEEP
cstruct
KAKAK
KAKAK

Reputation: 899

how do i get values stored in struct?

I am trying to retrieve values from an array of structs. I do not know the correct ways to retrieve them.

Here is my struct:

struct entry{
    char name[NAME_SIZE];
    int mark;
};

typedef struct entry Acct;
Acct dism2A03[MAX_ENTRY];

How i assigned values:

void add_new(char *name,int mark){
    printf("%s,%d",name,mark);
    int v=0;
    v=entry_total;
    strcpy(dism2A03[v].name,name);
    dism2A03[v].mark = mark;
}

What i tried (DOES NOT WORK):

int m=0;
for(m=0;m<MAX_ENTRY;m++){
                char name[NAME_SIZE] = dism2A03[m].name;
    line 75 >>          int mark = dism2A03[m].mark;
                printf("\nEntry %d",m);
                printf("%s",name);
                printf("%d",mark);
             }

ERROR: p9t2.c: In function ‘main’: p9t2.c:75:5: error: invalid initializer

Upvotes: 1

Views: 76

Answers (1)

Sergey Kalinichenko
Sergey Kalinichenko

Reputation: 727047

Your first attempt implies existence of getfield function that takes a struct and a multicharacter char literal and gets the field; there is no such function in C.

Your second attempt is much closer: rather than trying to assign the name to an array, assign it to a char pointer, like this:

int m=0;
for(m=0;m<MAX_ENTRY;m++){
    // Since you aren't planning on modifying name through pointer,
    // you can declare the pointer const to make your intentions clear.
    const char *name = dism2A03[m].name;
    int mark = dism2A03[m].mark;
    printf("\nEntry %d",m);
    printf("%s",name);
    printf("%d",mark);
}

Upvotes: 2

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