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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/abi/cabi-int-widening.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/abi/cabi-int-widening.rs')
-rw-r--r--src/test/ui/abi/cabi-int-widening.rs15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/abi/cabi-int-widening.rs b/src/test/ui/abi/cabi-int-widening.rs
new file mode 100644
index 000000000..1dbab2752
--- /dev/null
+++ b/src/test/ui/abi/cabi-int-widening.rs
@@ -0,0 +1,15 @@
+// run-pass
+// ignore-wasm32-bare no libc to test ffi with
+
+#[link(name = "rust_test_helpers", kind = "static")]
+extern "C" {
+ fn rust_int8_to_int32(_: i8) -> i32;
+}
+
+fn main() {
+ let x = unsafe {
+ rust_int8_to_int32(-1)
+ };
+
+ assert!(x == -1);
+}