1 files changed, 70 insertions, 0 deletions
diff --git a/vendor/serde_json/src/lexical/small_powers.rs b/vendor/serde_json/src/lexical/small_powers.rs
new file mode 100644
index 000000000..219d82611
--- /dev/null
+++ b/vendor/serde_json/src/lexical/small_powers.rs
@@ -0,0 +1,70 @@
+// Adapted from https://github.com/Alexhuszagh/rust-lexical.
+
+//! Pre-computed small powers.
+
+// 32 BIT
+#[cfg(limb_width_32)]
+pub(crate) const POW5_32: [u32; 14] = [
+    1, 5, 25, 125, 625, 3125, 15625, 78125, 390625, 1953125, 9765625, 48828125, 244140625,
+    1220703125,
+];
+
+#[cfg(limb_width_32)]
+pub(crate) const POW10_32: [u32; 10] = [
+    1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000,
+];
+
+// 64 BIT
+#[cfg(limb_width_64)]
+pub(crate) const POW5_64: [u64; 28] = [
+    1,
+    5,
+    25,
+    125,
+    625,
+    3125,
+    15625,
+    78125,
+    390625,
+    1953125,
+    9765625,
+    48828125,
+    244140625,
+    1220703125,
+    6103515625,
+    30517578125,
+    152587890625,
+    762939453125,
+    3814697265625,
+    19073486328125,
+    95367431640625,
+    476837158203125,
+    2384185791015625,
+    11920928955078125,
+    59604644775390625,
+    298023223876953125,
+    1490116119384765625,
+    7450580596923828125,
+];
+pub(crate) const POW10_64: [u64; 20] = [
+    1,
+    10,
+    100,
+    1000,
+    10000,
+    100000,
+    1000000,
+    10000000,
+    100000000,
+    1000000000,
+    10000000000,
+    100000000000,
+    1000000000000,
+    10000000000000,
+    100000000000000,
+    1000000000000000,
+    10000000000000000,
+    100000000000000000,
+    1000000000000000000,
+    10000000000000000000,
+];