1 | #include <Functions/FunctionNumericPredicate.h> |
---|---|
2 | #include <Functions/FunctionFactory.h> |
3 | #include <ext/bit_cast.h> |
4 | #include <type_traits> |
5 | |
6 | |
7 | namespace DB |
8 | { |
9 | |
10 | struct IsInfiniteImpl |
11 | { |
12 | static constexpr auto name = "isInfinite"; |
13 | template <typename T> |
14 | static bool execute(const T t) |
15 | { |
16 | if constexpr (std::is_same_v<T, float>) |
17 | return (ext::bit_cast<uint32_t>(t) |
18 | & 0b01111111111111111111111111111111) |
19 | == 0b01111111100000000000000000000000; |
20 | else if constexpr (std::is_same_v<T, double>) |
21 | return (ext::bit_cast<uint64_t>(t) |
22 | & 0b0111111111111111111111111111111111111111111111111111111111111111) |
23 | == 0b0111111111110000000000000000000000000000000000000000000000000000; |
24 | else |
25 | { |
26 | (void)t; |
27 | return false; |
28 | } |
29 | } |
30 | }; |
31 | |
32 | using FunctionIsInfinite = FunctionNumericPredicate<IsInfiniteImpl>; |
33 | |
34 | |
35 | void registerFunctionIsInfinite(FunctionFactory & factory) |
36 | { |
37 | factory.registerFunction<FunctionIsInfinite>(); |
38 | } |
39 | |
40 | } |
41 |