CODEWITHSUNDEEP
c
Luisruiz
Luisruiz

Reputation: 35

error in my code, was not declared in this scope

I think it should work, what I try to do is capture a value and print it on screen, but I get the following error.

C:\Users\luis\Documents\c++\estructura de datos\ejemplo_lista.cpp In function 'void mostrar()': 80 13 C:\Users\luis\Documents\c++\estructura de datos\ejemplo_lista.cpp [Error] 'list' was not declared in this scope 80 20 C:\Users\luis\Documents\c++\estructura de datos\ejemplo_lista.cpp [Error] 'value' was not declared in this scope

------start MAIN---------------------------------

  int main(){

    menu();
    show();

     getch();
}

------end MAIN------------------------------------

//Function Menu
    void menu()
    {
            NODE = NULL; 
        int choice;
        int value;
        while(choice!= 2){
         printf("********** MENU **********\n");
         printf ("1. Login data \n");
         printf ("2. exit \n");
         printf("**************************\n");
         scanf ("%i",&choice);


                switch (choice){
                    case 1:
                         printf("Please enter a value \n");
                         scanf("%i",&value);
                         add (list, value);
                         break;
                    case 2:
                         break;
               }
              system("pause");
            }

    }

input function

void add (NODE &list,int value)
{

   NODE aux_list;
   aux_list =(data_structure*) malloc (sizeof (data_structure));
   aux_list->data = value;
   aux_list->next = list;
   list = aux_list;
}
void show()
{

    NODE other_list;
   add(list, value);
   other_list = list;
   / / Display the elements of the list
    while(other_list != NULL)
     {
         printf("%i \n",other_list->data);
          other_list = other_list->next;

     }

}

--------------------- edit --------------------------

ready to solve it this way void mostrar(NODO lista,int valor) { lista=NULL;

Upvotes: 1

Views: 12717

Answers (3)

pablo1977
pablo1977

Reputation: 4433

You forgot to declare the type of variable lista, or perhaps to declare it as a parameter in the function mostrar(). 

 NODO lista; /* This one */

 void mostrar(NODO lista)      /* Or this one */

The object lista must be accesible inside the function mostrar().

(Update: The question has been changed to have English identifiers, so I will add the translated version below):

 NODE list; /* This one */

 void show(NODE list)      /* Or this one */

Upvotes: 1

pippin1289
pippin1289

Reputation: 4939

In mostrar() you attempt to use a variable lista. But lists in not decleared in that scope. You need to pass it as a parameter, or declare this variable in the function to avoid this error.

Upvotes: 1

cpp
cpp

Reputation: 3801

As the error message tells you, in function void mostrar() you use variables lista and valor that are not defined in the scope of this function.

Upvotes: 1

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