I am quite new to Rust, so sorry by advance if I'm misunderstanding something.
I have some code where I have generic functions such as this one :
pub(crate) fn square_root<T: Float>(value_array: &[T]) > T {
value_array[0].sqrt()
}
I also have this macro :
macro_rules! print_queries {
($INTERVAL:ty, $INTERVAL_INIT:expr, $TYPE_NAME:expr, $METHOD:expr, $PRINT_METHOD:expr, $VARIABLE_COUNT:expr) => {
{
let mut used_variables: Vec<$INTERVAL> = Vec::with_capacity($VARIABLE_COUNT);
for i in 0..$VARIABLE_COUNT {
used_variables.push($INTERVAL_INIT(COMP_DOUBLES[i]));
}
match std::panic::catch_unwind( $METHOD(&used_variables)) {
Ok(result) => {
println!("{}: ", $TYPE_NAME);
print_query(lower(result), upper(result), $PRINT_METHOD(COMP_GMP_RATIONALS.as_slice()));
}
Err(_) => {
println!("{}: ", $TYPE_NAME);
print_query(1.0, 1.0, $PRINT_METHOD(COMP_GMP_RATIONALS.as_slice()));
}
}
}
}
}
The macro is used with the first function as the parameter $METHOD, e.g.
print_queries!(InariInterval, inari_interval, "INARI", square_root, print_square_root, 1);
As you can see, I'm using this method with the Inari crate, which is a crate for interval arithmetic : inari  Rust
InariInterval is a copy of the type inari::Interval, and inari_interval is a method creating an Interval from one float.
However, this does not work, and here is the error I get :
error[E0277]: the trait bound `inari::Interval: num_traits::Float` is not satisfied
> src/query.rs:65:5

65  run_query!(square_root, print_square_root, 1, square_root_range, check_input_square_root);
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  
  required by a bound introduced by this call
 the trait `num_traits::Float` is not implemented for `inari::Interval`

= help: the following other types implement trait `num_traits::Float`:
f32
f64
note: required by a bound in `methods::square_root`
> src/methods.rs:803:30

803  pub(crate) fn square_root<T: Float>(value_array: &[T]) > T {
 ^^^^^ required by this bound in `square_root`
I'd like as much as possible to keep my functions generic. I don't think I can implement square_root without using Float, and that would only partly solve the problem since I have other functions with the same issue.
I tried to implement the Float trait for Inari but it doesn't seem to be possible. I got this error : Only traits defined in the current crate can be implemented for arbitrary types [E0117]
Thus, I'm a little bit stuck and I don't know if I can find a solution while keeping my functions generic.
Thanks for advance for your help and suggestions.