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-rw-r--r--src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.rs8
-rw-r--r--src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.stderr16
2 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.rs b/src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.rs
new file mode 100644
index 00000000000..24150376ef0
--- /dev/null
+++ b/src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.rs
@@ -0,0 +1,8 @@
+#![feature(concat_bytes)]
+
+fn main() {
+    concat_bytes!(7Y);
+    //~^ ERROR invalid suffix `Y` for number literal
+    concat_bytes!(888888888888888888888888888888888888888);
+    //~^ ERROR integer literal is too large
+}
diff --git a/src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.stderr b/src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.stderr
new file mode 100644
index 00000000000..8d70faa494d
--- /dev/null
+++ b/src/test/ui/macros/issue-104769-concat_bytes-invalid-literal.stderr
@@ -0,0 +1,16 @@
+error: invalid suffix `Y` for number literal
+  --> $DIR/issue-104769-concat_bytes-invalid-literal.rs:4:19
+   |
+LL |     concat_bytes!(7Y);
+   |                   ^^ invalid suffix `Y`
+   |
+   = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
+
+error: integer literal is too large
+  --> $DIR/issue-104769-concat_bytes-invalid-literal.rs:6:19
+   |
+LL |     concat_bytes!(888888888888888888888888888888888888888);
+   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 2 previous errors
+