"Returns the default value of `()`" } default_impl! { bool, false, "Returns the default value of `false`" } default_impl! { char, '\x00', "Returns the default value of `\\x00`" } default_impl! { usize, 0, "Returns the default value of `0`" } default_impl! { u8, 0, "Returns the default value of `0`" } default_impl! { u16, 0, "Returns the default value of `0`" } default_impl! { u32, 0, "Returns the default value of `0`" } default_impl! { u64, 0, "Returns the default value of `0`" } default_impl! { u128, 0, "Returns the default value of `0`" } default_impl! { isize, 0, "Returns the default value of `0`" } default_impl! { i8, 0, "Returns the default value of `0`" } default_impl! { i16, 0, "Returns the default value of `0`" } default_impl! { i32, 0, "Returns the default value of `0`" } default_impl! { i64, 0, "Returns the default value of `0`" } default_impl! { i128, 0, "Returns the default value of `0`" } default_impl! { f32, 0.0f32, "Returns the default value of `0.0`" } default_impl! { f64, 0.0f64, "Returns the default value of `0.0`" }