src/test/ui/rfc1445/match-forbidden-without-eq.rs

   1 use std::f32;
   2
   3 #[derive(PartialEq)]
   4 struct Foo {
   5     x: u32
   6 }
   7
   8 const FOO: Foo = Foo { x: 0 };
   9
  10 fn main() {
  11     let y = Foo { x: 1 };
  12     match y {
  13         FOO => { }
  14         //~^ ERROR must be annotated with `#[derive(PartialEq, Eq)]`
  15         _ => { }
  16     }
  17
  18     let x = 0.0;
  19     match x {
  20         f32::INFINITY => { }
  21         //~^ WARNING floating-point types cannot be used in patterns
  22         //~| WARNING will become a hard error in a future release
  23         //~| WARNING floating-point types cannot be used in patterns
  24         //~| WARNING this was previously accepted by the compiler but is being phased out
  25         _ => { }
  26     }
  27 }