Thread: Algorithm::find on string

Hi, I am trying to use the 'find' function from the STL algorithms library on 'string' by using iterators only
(I am aware that string::find exists)

I am having trouble getting this to compile...any clues?

(This example should read the string and insert a '+' character before every '-' in the string "curr"

Code:

                String curr = "aaa-bbb-ccc";
		string::iterator plus = curr.begin();
		while(plus != curr.end())
		{
			plus = find(plus,curr.end(),'-');
			if(plus != curr.end())
                        {
				curr.insert(plus,'+');
                                ++plus;
                        }
		}

any ideas?

Code:

q.cpp:19: error: no matching function for call to ‘find(__gnu_cxx::__normal_iterator<char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >&, __gnu_cxx::__normal_iterator<char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, char)’

http://www.cplusplus.com/reference/algorithm/find/

Perhaps you need to include <algorithm>.

You seem to be using the insert method incorrectly, though. It can invalidate the iterator, so you need to use the return value.