Question

can someone fix the infinite loop, it's stupid question, I don't know why for add field I get an infinite loop, but not for anything else

#include<iostream>
#include<string>
#include<vector>
using namespace std;

int n, n2;
int n3;
int id; int m;
char keno[50]; int x;
struct entity
{
   string random_words{};

   string title{};
   char keno[50]{};
   int y_tho{};
   int random_numbers{};
   int ID{};
   int id{};
   int I_hate_this{};
   int x{};
   int m{};
};

int main()
{
   cout << "Generic database creation program.";
   //vector to store employee data
   vector< struct entity* > v;

   entity e;

   //loop to take continuous data from user
   while (1)
   {
       cout << "What would you like to do next?\n" << "1. Add entity\n" << "2. Edit entity\n" << "3. Remove entity\n" << "4. Print entity info\n" << "5. Stop the program\n" << ">> ";

       cin >> n;

       int ID, id, pos;
       struct entity* entity = new struct entity();

       switch (n)
       {
       case 1:
           //Please start with 0 in console, I don't know how to automatically assign them
           cin >> entity->ID;
           cout << "The new entity with ID " << entity->ID << " has been added to the database.\n";

           v.push_back(entity); //Learned to use v.push_back from discord chat, not my own idea
           break;

       case 2:

           cout << "Please enter ID of the entity to edit: ";
           cin >> ID;

           cout << "Editing entity (ID " << ID << " )... ";

           pos = -1;
           for (size_t i = 0; i < v.size(); i++)
           {
               if (v[i]->ID == ID)
               {
                   pos = i;
               }
           }
           while (1)
           {

               cout << "What would you like to do next\n";
               cout << "1. Add field\n";
              cout << "2. Edit field\n";
               cout << "3. Remove field\n";
           cout << "4. Go back to main menu\n";

           cin >> m;
           switch (m)
           {

               while (1)
               {
           case 1:

                   cout << "Adding field to entity ( ID " << ID << ") named: >>"; cin.get(e.keno, 50);
                   cout << "Select type : 0 - characters, 1 - integer, 2 - float, 3 - boolean: >>" ;                     

                   if (x == 0)
                   {
                       getline(cin, entity->random_words);
                       v.push_back(entity);
                   }

                   else if (x == 1)
                   {
                       cin >> entity->y_tho;
                       v.push_back(entity);
                   }

                   else if (x == 2)
                   {
                       cin >> entity->random_numbers;
                       v.push_back(entity);
                   }

                   else
                   {
                       getline(cin, entity->random_words);
                       v.push_back(entity);
                   }
                   break;

                   case 2:
                   cout << "Please enter ID of the field to edit: ";
                   cin >> ID;

                   cout << "Editing entity (ID " << ID << " )... ";

                   pos = -1;
                   for (size_t i = 0; i < v.size(); i++)
                   {
                   if (v[i]->ID == ID)
                       {
                           pos = i;
                       }
                   }
                       break;

                   case 3:

                   cout << " Please provide field ID you want to remove: >> ";
                   cin >> ID;
                   pos = -1;
                   for (size_t i = 0; i < v.size(); i++)
                   {
                       if (v[i]->ID == ID)
                       {
                           pos = i;
                       }
                   }
                   v.erase(v.begin() + ID);
                   break;

                   case 4: {
                       break; }
                     

               }
                   break;
           }
             
           }

             
          
           v.push_back(entity); //Learned to use v.push_back from discord chat, not my own idea
           break;

       case 3:

           cout << " Please provide entity ID: >> ";
           cin >> ID;
           pos = -1;
           for (size_t i = 0; i < v.size(); i++) {
               if (v[i]->ID == ID) {
                   pos = i;
               }
           }
           v.erase(v.begin() + ID);
           break;

       case 4:

           cout << " Please provide entity ID: >> ";
           cin >> ID;
           //search for that employee in our database
           pos = -1;
           for (size_t i = 0; i < v.size(); i++) {
               if (v[i]->ID == ID) {
                   ID = i;
               }
           }
           cout << "Entity ID " << ID << " has" << ID << " fields";
           cout << "[Field " << ID << v[ID]->title;
           break;

       case 5:

           return 0;

       }

      
   }
}

use c++

Answer 1

#include<iostream>

#include<string>

#include<vector>

using namespace std;

int n, n2;

int n3;

int id; int m;

char keno[50]; int x;

struct entity

{

string random_words{};

string title{};

char keno[50]{};

int y_tho{};

int random_numbers{};

int ID{};

int id{};

int I_hate_this{};

int x{};

int m{};

};

int main()

{

cout << "Generic database creation program.";

//vector to store employee data

vector< struct entity* > v;

entity e;

//loop to take continuous data from user

while (1)

{

cout << "What would you like to do next?\n" << "1. Add entity\n" << "2. Edit entity\n" << "3. Remove entity\n" << "4. Print entity info\n" << "5. Stop the program\n" << ">> ";

cin >> n;

int ID, id, pos;

struct entity* entity = new struct entity();

switch (n)

{

case 1:

//Please start with 0 in console, I don't know how to automatically assign them

cout<<"Enter entity ID: ";

cin >> entity->ID;

cout << "The new entity with ID " << entity->ID << " has been added to the database.\n";

v.push_back(entity); //Learned to use v.push_back from discord chat, not my own idea

break;

case 2:

cout << "Please enter ID of the entity to edit: ";

cin >> ID;

cout << "Editing entity (ID " << ID << " )... ";

pos = -1;

for (size_t i = 0; i < v.size(); i++)

{

if (v[i]->ID == ID)

{

pos = i;

}

}

while (1)

{

cout << "What would you like to do next\n";

cout << "1. Add field\n";

cout << "2. Edit field\n";

cout << "3. Remove field\n";

cout << "4. Go back to main menu\n";

cin >> m;

switch (m)

{

while (1)

{

case 1:

cout << "Adding field to entity ( ID " << ID << ") named: >>"; cin.get(e.keno, 50);

cout << "Select type : 0 - characters, 1 - integer, 2 - float, 3 - boolean: >>" ;

if (x == 0)

{

getline(cin, entity->random_words);

v.push_back(entity);

}

else if (x == 1)

{

cin >> entity->y_tho;

v.push_back(entity);

}

else if (x == 2)

{

cin >> entity->random_numbers;

v.push_back(entity);

}

else

{

getline(cin, entity->random_words);

v.push_back(entity);

}

break;

case 2:

cout << "Please enter ID of the field to edit: ";

cin >> ID;

cout << "Editing entity (ID " << ID << " )... ";

pos = -1;

for (size_t i = 0; i < v.size(); i++)

{

if (v[i]->ID == ID)

{

pos = i;

}

}

break;

case 3:

cout << " Please provide field ID you want to remove: >> ";

cin >> ID;

pos = -1;

for (size_t i = 0; i < v.size(); i++)

{

if (v[i]->ID == ID)

{

pos = i;

}

}

v.erase(v.begin() + ID);

break;

case 4: {

break; }

}

break;

}

}

v.push_back(entity); //Learned to use v.push_back from discord chat, not my own idea

break;

case 3:

cout << " Please provide entity ID: >> ";

cin >> ID;

pos = -1;

for (size_t i = 0; i < v.size(); i++) {

if (v[i]->ID == ID) {

pos = i;

}

}

v.erase(v.begin() + ID);

break;

case 4:

cout << " Please provide entity ID: >> ";

cin >> ID;

//search for that employee in our database

pos = -1;

for (size_t i = 0; i < v.size(); i++) {

if (v[i]->ID == ID) {

ID = i;

}

}

cout << "Entity ID " << ID << " has" << ID << " fields";

cout << "[Field " << ID << v[ID]->title;

break;

case 5:

return 0;

}

}

}

=============================
No infinite loop now, SEE OUTPUT

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Thanks, let me know if you need more information. PLEASE COMMENT if there is any concern.