Function join

src/pystack/_pystack/pytypes.cpp:17–31

namespace {
template<typename Range, typename Value = typename Range::value_type>
std::string
join(Range const& elements, const char* const delimiter)
{
    std::ostringstream os;
    auto b = begin(elements), e = end(elements);

    if (b == e) {
        return "";
    }

    std::copy(b, prev(e), std::ostream_iterator<Value>(os, delimiter));
    os << *prev(e);

    return os.str();
}
}  // namespace

static const std::string ELLIPSIS = "...";