struct double_minus_half { static double apply() { return -0.5; } };
struct double_plus_half { static double apply() { return 0.5; } };
typedef scoped_channel_value<double, double_minus_half, double_plus_half> bits64custom_t;
bits64custom_t x = channel_traits<bits64custom_t>::max_value();
assert(x == 0.5);
bits16 y = channel_convert<bits16>(x);
assert(y == 65535);