template.hpp

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#ifndef __CPP_CONSOLE_TEMPLATE_HPP__
#define __CPP_CONSOLE_TEMPLATE_HPP__
 
#include <string>
#include <utility>
namespace console {
template <typename T>
struct iterable {
    template <class V>
    static long check(...);
    template <class V>
    static char check(int, typename V::const_iterator = T().end());
 
    enum { is = sizeof(check<T>(0)) == sizeof(char) };
};
 
template <typename T>
struct is_map {
    template <typename V>
    static auto check(int)
        -> decltype(std::declval<
                        V&>()[std::declval<const typename V::key_type&>()],
                    std::true_type{});
 
    template <typename V>
    static std::false_type check(...);
 
    enum { is = decltype(check<T>(0))::value };
};
 
template <typename T>
struct is_not_string
    : std::integral_constant<bool, !std::is_same_v<T, std::string>> {};
}  // namespace console
 
#endif