Method contains

src/value.cpp:279–287

const value* value::find(const std::string& pkey) const { return find_impl(x, pkey, this->end()); }
bool value::contains(const std::string& pkey) const
{
    const auto* it = find(pkey);
    if(it == nullptr)
        return false;
    if(it == end())
        return false;
    return true;
}
std::size_t value::size() const
{
    const auto* a = if_array_impl(x);