minimal_lexical/
table_small.rs

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1//! Pre-computed small tables for parsing decimal strings.
2
3#![doc(hidden)]
4#![cfg(not(feature = "compact"))]
5
6/// Pre-computed, small powers-of-5.
7pub const SMALL_INT_POW5: [u64; 28] = [
8    1,
9    5,
10    25,
11    125,
12    625,
13    3125,
14    15625,
15    78125,
16    390625,
17    1953125,
18    9765625,
19    48828125,
20    244140625,
21    1220703125,
22    6103515625,
23    30517578125,
24    152587890625,
25    762939453125,
26    3814697265625,
27    19073486328125,
28    95367431640625,
29    476837158203125,
30    2384185791015625,
31    11920928955078125,
32    59604644775390625,
33    298023223876953125,
34    1490116119384765625,
35    7450580596923828125,
36];
37
38/// Pre-computed, small powers-of-10.
39pub const SMALL_INT_POW10: [u64; 20] = [
40    1,
41    10,
42    100,
43    1000,
44    10000,
45    100000,
46    1000000,
47    10000000,
48    100000000,
49    1000000000,
50    10000000000,
51    100000000000,
52    1000000000000,
53    10000000000000,
54    100000000000000,
55    1000000000000000,
56    10000000000000000,
57    100000000000000000,
58    1000000000000000000,
59    10000000000000000000,
60];
61
62/// Pre-computed, small powers-of-10.
63pub const SMALL_F32_POW10: [f32; 16] =
64    [1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 0., 0., 0., 0., 0.];
65
66/// Pre-computed, small powers-of-10.
67pub const SMALL_F64_POW10: [f64; 32] = [
68    1e0, 1e1, 1e2, 1e3, 1e4, 1e5, 1e6, 1e7, 1e8, 1e9, 1e10, 1e11, 1e12, 1e13, 1e14, 1e15, 1e16,
69    1e17, 1e18, 1e19, 1e20, 1e21, 1e22, 0., 0., 0., 0., 0., 0., 0., 0., 0.,
70];
71
72/// Pre-computed large power-of-5 for 32-bit limbs.
73#[cfg(not(all(target_pointer_width = "64", not(target_arch = "sparc"))))]
74pub const LARGE_POW5: [u32; 10] = [
75    4279965485, 329373468, 4020270615, 2137533757, 4287402176, 1057042919, 1071430142, 2440757623,
76    381945767, 46164893,
77];
78
79/// Pre-computed large power-of-5 for 64-bit limbs.
80#[cfg(all(target_pointer_width = "64", not(target_arch = "sparc")))]
81pub const LARGE_POW5: [u64; 5] = [
82    1414648277510068013,
83    9180637584431281687,
84    4539964771860779200,
85    10482974169319127550,
86    198276706040285095,
87];
88
89/// Step for large power-of-5 for 32-bit limbs.
90pub const LARGE_POW5_STEP: u32 = 135;
minimal_lexical/table_small.rs

minimal_lexical/
table_small.rs
