iterator prob in for loop

A snippet of my code:

Code:

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    // 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;
            }
        } 
    }

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

Quote:

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

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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?

Iterator addition is only available in random access iterators. std::list only supports bidirectional iterators.

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

>You can use std::advance instead of +=.
Or look at your design and determine if you really do need a list. The need for random access here suggests that there might be a need elsewhere too, and a list might not be the best container.