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 --- src/test/ui/transmute/transmute-different-sizes.rs | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 src/test/ui/transmute/transmute-different-sizes.rs (limited to 'src/test/ui/transmute/transmute-different-sizes.rs') diff --git a/src/test/ui/transmute/transmute-different-sizes.rs b/src/test/ui/transmute/transmute-different-sizes.rs new file mode 100644 index 000000000..690decf63 --- /dev/null +++ b/src/test/ui/transmute/transmute-different-sizes.rs @@ -0,0 +1,31 @@ +// normalize-stderr-test "\d+ bits" -> "N bits" + +// Tests that `transmute` cannot be called on types of different size. + +#![allow(warnings)] +#![feature(specialization)] + +use std::mem::transmute; + +unsafe fn f() { + let _: i8 = transmute(16i16); + //~^ ERROR cannot transmute between types of different sizes, or dependently-sized types +} + +unsafe fn g(x: &T) { + let _: i8 = transmute(x); + //~^ ERROR cannot transmute between types of different sizes, or dependently-sized types +} + +trait Specializable { type Output; } + +impl Specializable for T { + default type Output = u16; +} + +unsafe fn specializable(x: u16) -> ::Output { + transmute(x) + //~^ ERROR cannot transmute between types of different sizes, or dependently-sized types +} + +fn main() {} -- cgit v1.2.3