CODEWITHSUNDEEP
cstructexpression
martiwg
martiwg

Reputation: 95

I get a expected an expression error with this struct

#include <stdio.h>

typedef struct{
    int len;
    int vec[16];
}tvector;

int main(){
    int elem, res;
    tvector v;
    v.len = 16;
    v.vec[16] = {3, 15, 19, 19, 23, 32, 38, 53, 123, 321, 543, 1000, 1123, 6578, 6660, 7999};

I don't know what's wrong with it, I get it in line 12 at the first bracket {

I've tried other ways around it but it makes it worse, and also did some research but none helped.

Thanks.

Upvotes: 0

Views: 76

Answers (2)

Krishna Kanth Yenumula
Krishna Kanth Yenumula

Reputation: 2567

You can use this method :

tvector v = { .len = 16, .vec = {3, 15, 19, 19, 23, 32, 38, 53, 123, 321, 543, 1000, 1123, 6578, 6660, 7999} };

You don't have to worry about the order of initialization (here).

Upvotes: 1

dbush
dbush

Reputation: 223739

You're attempting to use an initializer list in an assignment which isn't allowed. You also can't assign directly to an array, which is what you think you're doing but you're actually assigning to a single array element (and one past the end at that).

What you can do is initialize the struct at the time is is declared:

tvector v = { 16, {3, 15, 19, 19, 23, 32, 38, 53, 123, 321, 543, 1000, 1123, 6578, 6660, 7999} };

Upvotes: 1

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