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6 changes: 3 additions & 3 deletions .pre-commit-config.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -17,11 +17,11 @@ repos:
args: [--allow-multiple-documents]
- id: check-json
- repo: https://github.com/pre-commit/mirrors-clang-format
rev: v21.1.6
rev: v23.1.0
hooks:
- id: clang-format
- repo: https://github.com/PyCQA/pylint
rev: v4.0.4
rev: v4.0.8
hooks:
- id: pylint
exclude: ^(.cmake-format.py)
Expand All @@ -33,7 +33,7 @@ repos:
additional_dependencies:
- psutil
- repo: https://github.com/codespell-project/codespell
rev: v2.4.1
rev: v2.4.3
hooks:
- id: codespell
- repo: https://github.com/cheshirekow/cmake-format-precommit
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25 changes: 12 additions & 13 deletions poc/int_to_string/int_to_string.h
Original file line number Diff line number Diff line change
Expand Up @@ -51,19 +51,18 @@ static constexpr std::uint64_t pow10[21] = {1ULL,
// is floor(p * log10 2) + 1.
// this table lets us obtain L from the MSB in O(1) with at most one
// boundary comparison against the matching power of ten.
static constexpr std::uint8_t digit_count_lut[64] = {
// p : 0 1 2 3 | 4 5 6 | 7 8 9 | 10 11 12 13
1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4,
// p : 14 15 16 | 17 18 19 | 20 21 22 | 23 24 25 26
5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 8,
// p : 27 28 29 | 30 31 32 | 33 34 35 36 | 37 38
9, 9, 9, 10, 10, 10, 11, 11, 11, 11, 12, 12,
// p : 39 40 41 42 | 43 44 45 46 | 47 48 49
13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15,
// p : 50 51 52 53 | 54 55 56 | 57 58 59
16, 16, 16, 16, 17, 17, 17, 18, 18, 18,
// p : 60 61 62 63
19, 19, 19, 19};
static constexpr std::uint8_t digit_count_lut[64] = {// p : 0 1 2 3 | 4 5 6 | 7 8 9 | 10 11 12 13
1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4,
// p : 14 15 16 | 17 18 19 | 20 21 22 | 23 24 25 26
5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 8,
// p : 27 28 29 | 30 31 32 | 33 34 35 36 | 37 38
9, 9, 9, 10, 10, 10, 11, 11, 11, 11, 12, 12,
// p : 39 40 41 42 | 43 44 45 46 | 47 48 49
13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15,
// p : 50 51 52 53 | 54 55 56 | 57 58 59
16, 16, 16, 16, 17, 17, 17, 18, 18, 18,
// p : 60 61 62 63
19, 19, 19, 19};

// two-digit -> ASCII lookup (saves divide/modulo per digit)
// two_digit_lut[v*2] -> tens digit character
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