error request for member .. in .. which is of non-class type

I have got this error: "error: request for member 'nume' in 'tablou[j]', which is of non-class type ' [100]'", and I don't really know how to solve it.I tried searching on youtube and google but I found nothing .Does anyone have any ideas for how to solve this?

#include <iostream>
#include <bits/stdc  .h>

using namespace std;

struct{
    int counter;
    char nume[20] = " ";
}tablou[10][100];

int main()
{
    int n, counter = 0;
    char second[10][100];
    bool verify = true;

    cout<<"Cate nume?";
    cin>>n;

    for(int i = 0; i <= n; i  )
    {
        cin.getline(second[i],20);
    }

    for(int i = 0; i <= n; i  )
    {
        verify = true;

        for(int j = 0; j < i; j  )
        {
            if(strcmp(second[i], tablou[j].nume) == 0)
            {
                verify = false;
            }
        }

        if(verify == true)
        {
            strcpy(tablou[i].nume, second[i]);

            for(int k = 0; k < n; k  )
            {
                if(strcmp(tablou[i].nume, second[k]))
                {
                    tablou[i].counter  ;
                }
            }
        }
    }

    for(int i = 0; i <= n; i  )
    {
        cout<<tablou[i].nume<<" "<<tablou[i].counter<<endl;
    }

    return 0;
}

CodePudding user response：

tablou is a 2d array

struct{
    int counter;
    char nume[20] = " ";
}tablou[10][100];

its elements are tablou[x][y]

you try to access an element with only one index

if(strcmp(second[i], tablou[j].nume) == 0)
----------------------------^

I do not know what your code is trying to do , but thats why you get the error

CodePudding user response：

The array tablou is a two-dimensopnal array

struct{
    int counter;
    char nume[20] = " ";
}tablou[10][100];

So for example the expression tablou[j] has the array type the_unnamed_structure[100].

So such an expression like this

tablou[j].nume

is incorrect and the compiler issues an error.

Maybe actually you mean the following declaration of the array

struct{
    int counter;
    char nume[20] = " ";
}tablou[10];

Also in these loops

for(int i = 0; i <= n; i  )
{
    verify = true;

    for(int j = 0; j < i; j  )
    {
        if(strcmp(second[i], tablou[j].nume) == 0)
        {
            verify = false;
        }
    }

    if(verify == true)
    {
        strcpy(tablou[i].nume, second[i]);

        for(int k = 0; k < n; k  )
        {
            if(strcmp(tablou[i].nume, second[k]))
            {
                tablou[i].counter  ;
            }
        }
    }
}

some elements of the array tablou can be skipped if verify is set to false because you are using the index i to assign elements of the array tablou. That is the number of actual elements of the array tablou can be less than n. In this case this for loop

for(int i = 0; i <= n; i  )
{
    cout<<tablou[i].nume<<" "<<tablou[i].counter<<endl;
}

will invoke undefined behavior because the data member counter will be uninitialized for some outputted elements of the array.

You need to support a separate variable as an index in the array tablou.