export namespace std {
using std::size_t _LIBCPP_USING_IF_EXISTS;
using std::memchr _LIBCPP_USING_IF_EXISTS;
using std::memcmp _LIBCPP_USING_IF_EXISTS;
using std::memcpy _LIBCPP_USING_IF_EXISTS;
using std::memmove _LIBCPP_USING_IF_EXISTS;
using std::memset _LIBCPP_USING_IF_EXISTS;
using std::strcat _LIBCPP_USING_IF_EXISTS;
using std::strchr _LIBCPP_USING_IF_EXISTS;
using std::strcmp _LIBCPP_USING_IF_EXISTS;
using std::strcoll _LIBCPP_USING_IF_EXISTS;
using std::strcpy _LIBCPP_USING_IF_EXISTS;
using std::strcspn _LIBCPP_USING_IF_EXISTS;
using std::strerror _LIBCPP_USING_IF_EXISTS;
using std::strlen _LIBCPP_USING_IF_EXISTS;
using std::strncat _LIBCPP_USING_IF_EXISTS;
using std::strncmp _LIBCPP_USING_IF_EXISTS;
using std::strncpy _LIBCPP_USING_IF_EXISTS;
using std::strpbrk _LIBCPP_USING_IF_EXISTS;
using std::strrchr _LIBCPP_USING_IF_EXISTS;
using std::strspn _LIBCPP_USING_IF_EXISTS;
using std::strstr _LIBCPP_USING_IF_EXISTS;
using std::strtok _LIBCPP_USING_IF_EXISTS;
using std::strxfrm _LIBCPP_USING_IF_EXISTS;
}