From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/nll/type-check-pointer-comparisons.rs | 31 ++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 tests/ui/nll/type-check-pointer-comparisons.rs (limited to 'tests/ui/nll/type-check-pointer-comparisons.rs') diff --git a/tests/ui/nll/type-check-pointer-comparisons.rs b/tests/ui/nll/type-check-pointer-comparisons.rs new file mode 100644 index 000000000..7b0ffeaef --- /dev/null +++ b/tests/ui/nll/type-check-pointer-comparisons.rs @@ -0,0 +1,31 @@ +// Check that we assert that pointers have a common subtype for comparisons + +fn compare_const<'a, 'b>(x: *const &mut &'a i32, y: *const &mut &'b i32) { + x == y; + //~^ ERROR lifetime may not live long enough + //~| ERROR lifetime may not live long enough +} + +fn compare_mut<'a, 'b>(x: *mut &'a i32, y: *mut &'b i32) { + x == y; + //~^ ERROR lifetime may not live long enough + //~| ERROR lifetime may not live long enough +} + +fn compare_fn_ptr<'a, 'b, 'c>(f: fn(&'c mut &'a i32), g: fn(&'c mut &'b i32)) { + f == g; + //~^ ERROR lifetime may not live long enough + //~| ERROR lifetime may not live long enough +} + +fn compare_hr_fn_ptr<'a>(f: fn(&'a i32), g: fn(&i32)) { + // Ideally this should compile with the operands swapped as well, but HIR + // type checking prevents it (and stops compilation) for now. + f == g; // OK +} + +fn compare_const_fn_ptr<'a>(f: *const fn(&'a i32), g: *const fn(&i32)) { + f == g; // OK +} + +fn main() {} -- cgit v1.2.3