File: generic-impl-more-params-with-defaults.rs

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rustc 1.85.0%2Bdfsg2-3
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use std::marker;

struct Heap;

struct Vec<T, A = Heap>(
    marker::PhantomData<(T,A)>);

impl<T, A> Vec<T, A> {
    fn new() -> Vec<T, A> {Vec(marker::PhantomData)}
}

fn main() {
    Vec::<isize, Heap, bool>::new();
    //~^ ERROR struct takes at most 2 generic arguments but 3 generic arguments were supplied
}