C++11 Utility Functions

join.hpp

#include <sstream>

// Provides a generic python-inspired string join function that operates on iterators
// and containers.

template <typename Iterator>
string join (const std::string & delim, Iterator begin, Iterator end) {
    std::ostringstream ss;
    
    if (begin != end)
        ss << *begin++;
    
    for (; begin != end; ++begin)
        ss << delim << *begin;
    
    return ss.str();
}

template <typename Container>
std::string join (const std::string & delim, const Container & elems) {
    return join(delim, std::begin(elems), std::end(elems));
}