From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- .../ui/extern/extern-compare-with-return-type.rs | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 src/test/ui/extern/extern-compare-with-return-type.rs (limited to 'src/test/ui/extern/extern-compare-with-return-type.rs') diff --git a/src/test/ui/extern/extern-compare-with-return-type.rs b/src/test/ui/extern/extern-compare-with-return-type.rs new file mode 100644 index 000000000..42693d3a0 --- /dev/null +++ b/src/test/ui/extern/extern-compare-with-return-type.rs @@ -0,0 +1,27 @@ +// run-pass + +// Tests that we can compare various kinds of extern fn signatures. +#![allow(non_camel_case_types)] + +// `dbg!()` differentiates these functions to ensure they won't be merged. +extern "C" fn voidret1() { dbg!() } +extern "C" fn voidret2() { dbg!() } + +extern "C" fn uintret() -> usize { 22 } + +extern "C" fn uintvoidret(_x: usize) {} + +extern "C" fn uintuintuintuintret(x: usize, y: usize, z: usize) -> usize { x+y+z } +type uintuintuintuintret = extern "C" fn(usize,usize,usize) -> usize; + +pub fn main() { + assert!(voidret1 as extern "C" fn() == voidret1 as extern "C" fn()); + assert!(voidret1 as extern "C" fn() != voidret2 as extern "C" fn()); + + assert!(uintret as extern "C" fn() -> usize == uintret as extern "C" fn() -> usize); + + assert!(uintvoidret as extern "C" fn(usize) == uintvoidret as extern "C" fn(usize)); + + assert!(uintuintuintuintret as uintuintuintuintret == + uintuintuintuintret as uintuintuintuintret); +} -- cgit v1.2.3