1 | #pragma once |
2 | |
3 | #include <cstdint> |
4 | #include <limits> |
5 | |
6 | |
7 | // Also defined in Core/Defines.h |
8 | #if !defined(NO_SANITIZE_UNDEFINED) |
9 | #if defined(__clang__) |
10 | #define NO_SANITIZE_UNDEFINED __attribute__((__no_sanitize__("undefined"))) |
11 | #else |
12 | #define NO_SANITIZE_UNDEFINED |
13 | #endif |
14 | #endif |
15 | |
16 | |
17 | /// On overlow, the function returns unspecified value. |
18 | inline NO_SANITIZE_UNDEFINED uint64_t intExp2(int x) |
19 | { |
20 | return 1ULL << x; |
21 | } |
22 | |
23 | inline uint64_t intExp10(int x) |
24 | { |
25 | if (x < 0) |
26 | return 0; |
27 | if (x > 19) |
28 | return std::numeric_limits<uint64_t>::max(); |
29 | |
30 | static const uint64_t table[20] = |
31 | { |
32 | 1ULL, 10ULL, 100ULL, |
33 | 1000ULL, 10000ULL, 100000ULL, |
34 | 1000000ULL, 10000000ULL, 100000000ULL, |
35 | 1000000000ULL, 10000000000ULL, 100000000000ULL, |
36 | 1000000000000ULL, 10000000000000ULL, 100000000000000ULL, |
37 | 1000000000000000ULL, 10000000000000000ULL, 100000000000000000ULL, |
38 | 1000000000000000000ULL, 10000000000000000000ULL |
39 | }; |
40 | |
41 | return table[x]; |
42 | } |
43 | |
44 | namespace common |
45 | { |
46 | |
47 | inline int exp10_i32(int x) |
48 | { |
49 | static const int values[] = { |
50 | 1, |
51 | 10, |
52 | 100, |
53 | 1000, |
54 | 10000, |
55 | 100000, |
56 | 1000000, |
57 | 10000000, |
58 | 100000000, |
59 | 1000000000 |
60 | }; |
61 | return values[x]; |
62 | } |
63 | |
64 | inline int64_t exp10_i64(int x) |
65 | { |
66 | static const int64_t values[] = { |
67 | 1ll, |
68 | 10ll, |
69 | 100ll, |
70 | 1000ll, |
71 | 10000ll, |
72 | 100000ll, |
73 | 1000000ll, |
74 | 10000000ll, |
75 | 100000000ll, |
76 | 1000000000ll, |
77 | 10000000000ll, |
78 | 100000000000ll, |
79 | 1000000000000ll, |
80 | 10000000000000ll, |
81 | 100000000000000ll, |
82 | 1000000000000000ll, |
83 | 10000000000000000ll, |
84 | 100000000000000000ll, |
85 | 1000000000000000000ll |
86 | }; |
87 | return values[x]; |
88 | } |
89 | |
90 | inline __int128 exp10_i128(int x) |
91 | { |
92 | static const __int128 values[] = { |
93 | static_cast<__int128>(1ll), |
94 | static_cast<__int128>(10ll), |
95 | static_cast<__int128>(100ll), |
96 | static_cast<__int128>(1000ll), |
97 | static_cast<__int128>(10000ll), |
98 | static_cast<__int128>(100000ll), |
99 | static_cast<__int128>(1000000ll), |
100 | static_cast<__int128>(10000000ll), |
101 | static_cast<__int128>(100000000ll), |
102 | static_cast<__int128>(1000000000ll), |
103 | static_cast<__int128>(10000000000ll), |
104 | static_cast<__int128>(100000000000ll), |
105 | static_cast<__int128>(1000000000000ll), |
106 | static_cast<__int128>(10000000000000ll), |
107 | static_cast<__int128>(100000000000000ll), |
108 | static_cast<__int128>(1000000000000000ll), |
109 | static_cast<__int128>(10000000000000000ll), |
110 | static_cast<__int128>(100000000000000000ll), |
111 | static_cast<__int128>(1000000000000000000ll), |
112 | static_cast<__int128>(1000000000000000000ll) * 10ll, |
113 | static_cast<__int128>(1000000000000000000ll) * 100ll, |
114 | static_cast<__int128>(1000000000000000000ll) * 1000ll, |
115 | static_cast<__int128>(1000000000000000000ll) * 10000ll, |
116 | static_cast<__int128>(1000000000000000000ll) * 100000ll, |
117 | static_cast<__int128>(1000000000000000000ll) * 1000000ll, |
118 | static_cast<__int128>(1000000000000000000ll) * 10000000ll, |
119 | static_cast<__int128>(1000000000000000000ll) * 100000000ll, |
120 | static_cast<__int128>(1000000000000000000ll) * 1000000000ll, |
121 | static_cast<__int128>(1000000000000000000ll) * 10000000000ll, |
122 | static_cast<__int128>(1000000000000000000ll) * 100000000000ll, |
123 | static_cast<__int128>(1000000000000000000ll) * 1000000000000ll, |
124 | static_cast<__int128>(1000000000000000000ll) * 10000000000000ll, |
125 | static_cast<__int128>(1000000000000000000ll) * 100000000000000ll, |
126 | static_cast<__int128>(1000000000000000000ll) * 1000000000000000ll, |
127 | static_cast<__int128>(1000000000000000000ll) * 10000000000000000ll, |
128 | static_cast<__int128>(1000000000000000000ll) * 100000000000000000ll, |
129 | static_cast<__int128>(1000000000000000000ll) * 100000000000000000ll * 10ll, |
130 | static_cast<__int128>(1000000000000000000ll) * 100000000000000000ll * 100ll, |
131 | static_cast<__int128>(1000000000000000000ll) * 100000000000000000ll * 1000ll |
132 | }; |
133 | return values[x]; |
134 | } |
135 | |
136 | } |
137 | |