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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/ptr-coercion.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/ptr-coercion.rs')
-rw-r--r--src/test/ui/ptr-coercion.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/ui/ptr-coercion.rs b/src/test/ui/ptr-coercion.rs
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+// 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
+}