chore: add vendor dependencies for kauma build

vendor/ryu/tests/d2s_table_test.rs

@@ -0,0 +1,59 @@
+// Translated from C to Rust. The original C code can be found at
+// https://github.com/ulfjack/ryu and carries the following license:
+//
+// Copyright 2018 Ulf Adams
+//
+// The contents of this file may be used under the terms of the Apache License,
+// Version 2.0.
+//
+//    (See accompanying file LICENSE-Apache or copy at
+//     http://www.apache.org/licenses/LICENSE-2.0)
+//
+// Alternatively, the contents of this file may be used under the terms of
+// the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE-Boost or copy at
+//     https://www.boost.org/LICENSE_1_0.txt)
+//
+// Unless required by applicable law or agreed to in writing, this software
+// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.
+
+#![allow(dead_code)]
+#![allow(
+    clippy::cast_lossless,
+    clippy::cast_possible_truncation,
+    clippy::cast_possible_wrap,
+    clippy::cast_sign_loss,
+    clippy::unreadable_literal,
+    clippy::unseparated_literal_suffix,
+    clippy::wildcard_imports
+)]
+
+#[path = "../src/common.rs"]
+mod common;
+
+#[path = "../src/d2s_full_table.rs"]
+mod d2s_full_table;
+
+#[path = "../src/d2s_intrinsics.rs"]
+mod d2s_intrinsics;
+
+#[path = "../src/d2s_small_table.rs"]
+mod d2s_small_table;
+
+use d2s_full_table::{DOUBLE_POW5_INV_SPLIT, DOUBLE_POW5_SPLIT};
+use d2s_small_table::{compute_inv_pow5, compute_pow5};
+
+#[test]
+fn test_compute_pow5() {
+    for (i, entry) in DOUBLE_POW5_SPLIT.iter().enumerate() {
+        assert_eq!(*entry, unsafe { compute_pow5(i as u32) }, "entry {}", i);
+    }
+}
+
+#[test]
+fn test_compute_inv_pow5() {
+    for (i, entry) in DOUBLE_POW5_INV_SPLIT[..292].iter().enumerate() {
+        assert_eq!(*entry, unsafe { compute_inv_pow5(i as u32) }, "entry {}", i);
+    }
+}