Thread: iterator prob in for loop

A snippet of my code:

Code:

    // cycle through list of words
    for(list<string>::iterator i = inputFile.begin(); i != inputFile.end(); i++) {
        string word = *i;
        // compare to words in dictionary
        for(list<string>::iterator j = loadedDictionary.begin(); j != loadedDictionary.end(); j+=2) {
            string dicWord = *j;
            
            if(word.compare(dicWord) == 0) { // if words are equal - fix
                *i = *(j+1);
                break;
            }
        }   
    }

I get the following errors and I'm not quite sure why:

error: no match for 'operator+=' in 'j += 2'
error: no match for 'operator+' in 'j + 1'

The nexted for loop is required to look at every second string in the list. If a string math is found, then the dereferenced iterator (*i) must equal the j+1 dereferenced element in the list. What is wrong with the pointer arithmetic?

You can use std::advance instead of +=.