#### buffer (31 of 42 overloads)

Create a new non-modifiable buffer from a contiguous container.

    template<
        typename T>
    const_buffer buffer(
        T & data,
        constraint_t< is_contiguous_iterator< typename T::iterator >::value, defaulted_constraint >  = defaulted_constraint(),
        constraint_t< !is_convertible< T, const_buffer >::value, defaulted_constraint >  = defaulted_constraint(),
        constraint_t< !is_convertible< T, mutable_buffer >::value, defaulted_constraint >  = defaulted_constraint(),
        constraint_t< is_const< remove_reference_t< typename std::iterator_traits< typename T::iterator >::reference > >::value, defaulted_constraint >  = defaulted_constraint());

###### Return Value

A `const_buffer` value equivalent to:

    const_buffer(
       data.size() ? &data[0] : 0,
       data.size() * sizeof(typename T::value_type));