gdb/testsuite/gdb.rust/generics.rs

   1 // Copyright (C) 2016-2022 Free Software Foundation, Inc.
   2
   3 // This program is free software; you can redistribute it and/or modify
   4 // it under the terms of the GNU General Public License as published by
   5 // the Free Software Foundation; either version 3 of the License, or
   6 // (at your option) any later version.
   7 //
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 #![allow(dead_code)]
  17 #![allow(unused_variables)]
  18 #![allow(unused_assignments)]
  19
  20
  21 #[derive(Clone, Copy)]
  22 struct Hold<T>(T);
  23
  24 pub fn identity<T>(x: T) -> T { x }
  25
  26 fn dowhatever() { () }
  27
  28 pub fn main() {
  29     let a = identity(23u32);
  30     let b = identity(23.0f64);
  31
  32     let d = identity::<u32>(7);
  33
  34     let e = Hold(7);
  35     let f = Hold::<u8>(7);
  36
  37     let g = identity(e);
  38
  39     let h = Hold(e);
  40     let i = identity(h);
  41
  42     let z = ();                          // set breakpoint here
  43     dowhatever()
  44 }