The syntax for inserting strings into a list, maintaining alpha order.

[whodgson]

Could someone please explain why the first code snippet inserts properly into a list and the second code snippet does not. The position of the bold expressions are the only differences. iter, s and LS were declared elsewhere in main().
snippet 1.)

while (true) {
    cout << "Enter string (ENTER to exit): ";
    getline(cin, s);
    if (s.size() == 0)
           break;
    for(iter=LS.begin();iter != LS.end() && s > *iter; )
       [B]iter++;[/B]
       LS.insert(iter, s);
    }

snippet 2.)

while (true) {
          cout << "Enter string (ENTER to exit): ";
          getline(cin, s);
          if (s.size() == 0)
               break;
          //LS.push_back(s);
     for(iter=LS.begin();iter != LS.end() && s > *iter;   [B]iter++[/B])
          
          LS.insert(iter, s);
    }

thanks in advance.

[johny10151981]

The difference between two code can be described as below:
Code 1 for loop in little detail:

for(iter=LS.begin();iter != LS.end() && s > *iter; )
{
       iter++;
}
LS.insert(iter, s); //this line is out of for loop

Code 2 for loop in little detial:

for(iter=LS.begin();iter != LS.end() && s > *iter;   iter++)
{
   LS.insert(iter, s); //this line is in for loop, but in the above code, it is out of for loop
}

the equivalent code for the first for loop is

for(iter=LS.begin();iter != LS.end() && s > *iter;        iter++);//the semicolon at the end

[weaknessforcats]

This is a good example to why it's a good habit to use braces rather than rely on semi-colons.