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/ptr-coercion.rs | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 tests/ui/ptr-coercion.rs (limited to 'tests/ui/ptr-coercion.rs') diff --git a/tests/ui/ptr-coercion.rs b/tests/ui/ptr-coercion.rs new file mode 100644 index 000000000..193899034 --- /dev/null +++ b/tests/ui/ptr-coercion.rs @@ -0,0 +1,23 @@ +// Test coercions between pointers which don't do anything fancy like unsizing. +// These are testing that we don't lose mutability when converting to raw pointers. + +pub fn main() { + // *const -> *mut + let x: *const isize = &42; + let x: *mut isize = x; //~ ERROR mismatched types + //~| expected raw pointer `*mut isize` + //~| found raw pointer `*const isize` + //~| types differ in mutability + + // & -> *mut + let x: *mut isize = &42; //~ ERROR mismatched types + //~| expected raw pointer `*mut isize` + //~| found reference `&isize` + //~| types differ in mutability + + let x: *const isize = &42; + let x: *mut isize = x; //~ ERROR mismatched types + //~| expected raw pointer `*mut isize` + //~| found raw pointer `*const isize` + //~| types differ in mutability +} -- cgit v1.2.3