Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/compiler/rustc_error_codes/src/error_codes/E0044.md b/compiler/rustc_error_codes/src/error_codes/E0044.md
new file mode 100644
index 000000000..ed7daf8dd
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0044.md
@@ -0,0 +1,15 @@
+You cannot use type or const parameters on foreign items.
+
+Example of erroneous code:
+
+```compile_fail,E0044
+extern "C" { fn some_func<T>(x: T); }
+```
+
+To fix this, replace the generic parameter with the specializations that you
+need:
+
+```
+extern "C" { fn some_func_i32(x: i32); }
+extern "C" { fn some_func_i64(x: i64); }
+```