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70d1adfe4b
* save format string for NetException * format exceptions * format exceptions 2 * format exceptions 3 * format exceptions 4 * format exceptions 5 * format exceptions 6 * fix * format exceptions 7 * format exceptions 8 * Update MergeTreeIndexGin.cpp * Update AggregateFunctionMap.cpp * Update AggregateFunctionMap.cpp * fix
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
#pragma once
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#include <DataTypes/NumberTraits.h>
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#include <Common/Exception.h>
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#include <base/extended_types.h>
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#include <limits>
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#include <type_traits>
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#include "config.h"
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int DECIMAL_OVERFLOW;
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}
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template <typename A, typename B, typename Impl, typename Name>
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struct GCDLCMImpl
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{
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using ResultType = typename NumberTraits::ResultOfAdditionMultiplication<A, B>::Type;
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static const constexpr bool allow_fixed_string = false;
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static const constexpr bool allow_string_integer = false;
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template <typename Result = ResultType>
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static inline Result apply(A a, B b)
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{
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throwIfDivisionLeadsToFPE(typename NumberTraits::ToInteger<A>::Type(a), typename NumberTraits::ToInteger<B>::Type(b));
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throwIfDivisionLeadsToFPE(typename NumberTraits::ToInteger<B>::Type(b), typename NumberTraits::ToInteger<A>::Type(a));
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using Int = typename NumberTraits::ToInteger<Result>::Type;
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if constexpr (is_signed_v<Result>)
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{
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/// gcd() internally uses std::abs()
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Int a_s = static_cast<Int>(a);
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Int b_s = static_cast<Int>(b);
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Int min = std::numeric_limits<Int>::lowest();
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Int max = std::numeric_limits<Int>::max();
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if (unlikely((a_s == min || a_s == max) || (b_s == min || b_s == max)))
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throw Exception(ErrorCodes::DECIMAL_OVERFLOW,
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"Intermediate result overflow (signed a = {}, signed b = {}, min = {}, max = {})",
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a_s, b_s, min, max);
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}
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return Impl::applyImpl(a, b);
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}
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#if USE_EMBEDDED_COMPILER
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static constexpr bool compilable = false; /// exceptions (and a non-trivial algorithm)
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#endif
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};
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}
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