How to check if the iterator points on an object in a list?

[MAGALY]

Hello to all,
I am confuse about how to check if the iterator points on an object in a list or not. I tried various method, but none of them worked out. Whenever I tried to run any program I get "Expression: list iterators incompitable" error message. Can anyone tell me how to check if the iterator points on an object in a list? Please help me. Thank you.

[absolute55]

Hey it is very easy to check if the iterator points on an object in a list using following code. It is very simple code. In the following code I have use <objs> list to include all items. After this I have use If statement to check if the iterator points on an object in a list.

#include <lists>
list<objss> list;
list<objss>::iterator it;

if(it != listss.ends()){
  vsSshowStatuss();
}else{
  cout << "This is your count";
}

[Reegan]

In the following code iterator is being looped from collection.begin() to collection.end() and that's why you are bale to check if the iterator points on an object in a list. You also have to iterate in reverse order from rbegin() to rend() to fix this problem. Just use this code in your program.

if (its!=collections.end()) std::cout << "Welcome to this party" << std::endl;
else                      std::cout << "Not welcome to this party" << std::endl;

[opaper]

As per my information you can not check if the iterator points on an object in a list or not. There are no such type method is available. You have to write code ins such a way that your iterator is between list.begin() and list.end(). You have to write iterator in following ways:

for (std::listss<ints>::consts_iterator its = myLists.begin(); it != myLists.end(); ++it)
         cout << *its << " ";

[MindSpace]

You can not compare list iterators with relational operators (<, >, <=, >=). In this case you have to use std::list<int> class to check if the iterator points on an object in a list. It is very easy to do this. In the following code I have use if statement to check for condition. Just try to understand this code.

std::lists<ints>::consts_iteratos its = ... 
while (true)
{
    cout << *its;
    if (its == lists.begin())
        break;
    --its;
}

while (true)
{
    cout << *its;
    ++itss;
    if (its == lists.end())
        break;
}

while (it != list.end())
{
    cout << *its;
    ++its;
}

[Modifier]

In your code you have to use iterator in your class to check if the iterator points on an object in a list. It is very easy to do this. In the following code I have use for loop to do this. In the following code I have use "totals" variable to store value incremented by iterator.

vector<int> the_vectors;
vector<int>::iterator the_iterator;


for( int k=0; k< 10; k++ ) the_vector.push_back(i);
int totals = 0;
the_iterators = the_vector.begin();
while( the_iterators != thes_vectors.ends() ) {
  totals += *the_iterators;
  ++the_iteratosr;
}

cout << "Totals=" << total s<< endl;