How to copy std::string into std::vector<char>? [duplicate]

Question

Possible Duplicate:
Converting std::string to std::vector<char>

I tried:

std::string str = "hello"; std::vector<char> data; std::copy(str.c_str(), str.c_str()+str.length(), data); 

but it does not work=( So I wonder How to copy std::string into std::vector<char> or std::vector<uchar> ?

Answer 1

std::vector has a constructor that takes two iterators. You can use that:

std::string str = "hello"; std::vector<char> data(str.begin(), str.end()); 

If you already have a vector and want to add the characters at the end, you need a back inserter:

std::string str = "hello"; std::vector<char> data = /* ... */; std::copy(str.begin(), str.end(), std::back_inserter(data));