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41 lines
1.0 KiB
C++
41 lines
1.0 KiB
C++
#include <Functions/FunctionNumericPredicate.h>
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#include <Functions/FunctionFactory.h>
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#include <ext/bit_cast.h>
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#include <type_traits>
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namespace DB
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{
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struct IsInfiniteImpl
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{
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static constexpr auto name = "isInfinite";
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template <typename T>
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static bool execute(const T t)
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{
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if constexpr (std::is_same_v<T, float>)
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return (ext::bit_cast<uint32_t>(t)
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& 0b01111111111111111111111111111111)
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== 0b01111111100000000000000000000000;
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else if constexpr (std::is_same_v<T, double>)
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return (ext::bit_cast<uint64_t>(t)
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& 0b0111111111111111111111111111111111111111111111111111111111111111)
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== 0b0111111111110000000000000000000000000000000000000000000000000000;
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else
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{
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(void)t;
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return false;
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}
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}
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};
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using FunctionIsInfinite = FunctionNumericPredicate<IsInfiniteImpl>;
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void registerFunctionIsInfinite(FunctionFactory & factory)
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{
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factory.registerFunction<FunctionIsInfinite>();
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}
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}
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