1 // Adapted from https://github.com/Alexhuszagh/rust-lexical. 2 3 //! Pre-computed small powers. 4 5 // 32 BIT 6 #[cfg(limb_width_32)] 7 pub(crate) const POW5_32: [u32; 14] = [ 8 1, 5, 25, 125, 625, 3125, 15625, 78125, 390625, 1953125, 9765625, 48828125, 244140625, 9 1220703125, 10 ]; 11 12 #[cfg(limb_width_32)] 13 pub(crate) const POW10_32: [u32; 10] = [ 14 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000, 15 ]; 16 17 // 64 BIT 18 #[cfg(limb_width_64)] 19 pub(crate) const POW5_64: [u64; 28] = [ 20 1, 21 5, 22 25, 23 125, 24 625, 25 3125, 26 15625, 27 78125, 28 390625, 29 1953125, 30 9765625, 31 48828125, 32 244140625, 33 1220703125, 34 6103515625, 35 30517578125, 36 152587890625, 37 762939453125, 38 3814697265625, 39 19073486328125, 40 95367431640625, 41 476837158203125, 42 2384185791015625, 43 11920928955078125, 44 59604644775390625, 45 298023223876953125, 46 1490116119384765625, 47 7450580596923828125, 48 ]; 49 pub(crate) const POW10_64: [u64; 20] = [ 50 1, 51 10, 52 100, 53 1000, 54 10000, 55 100000, 56 1000000, 57 10000000, 58 100000000, 59 1000000000, 60 10000000000, 61 100000000000, 62 1000000000000, 63 10000000000000, 64 100000000000000, 65 1000000000000000, 66 10000000000000000, 67 100000000000000000, 68 1000000000000000000, 69 10000000000000000000, 70 ]; 71