e412dd12e8
Currently, there are some useless includes in the codebase. We can use a tool named include-what-you-use to optimize these includes. By using a strict include-what-you-use policy, we can get lots of benefits from it.
81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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// This file is copied from
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// https://github.com/ClickHouse/ClickHouse/blob/master/src/Functions/divide.cpp
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// and modified by Doris
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#include <string.h>
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#include <utility>
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#include "runtime/decimalv2_value.h"
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#include "vec/columns/column_vector.h"
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#include "vec/core/types.h"
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#include "vec/data_types/number_traits.h"
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#include "vec/functions/function_binary_arithmetic.h"
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#include "vec/functions/simple_function_factory.h"
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namespace doris::vectorized {
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static const DecimalV2Value one(1, 0);
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template <typename A, typename B>
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struct DivideFloatingImpl {
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using ResultType = typename NumberTraits::ResultOfFloatingPointDivision<A, B>::Type;
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using Traits = NumberTraits::BinaryOperatorTraits<A, B>;
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static const constexpr bool allow_decimal = true;
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template <typename Result = ResultType>
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static void apply(const typename Traits::ArrayA& a, B b,
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typename ColumnVector<Result>::Container& c,
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typename Traits::ArrayNull& null_map) {
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size_t size = c.size();
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UInt8 is_null = b == 0;
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memset(null_map.data(), is_null, size);
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if (!is_null) {
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for (size_t i = 0; i < size; i++) {
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c[i] = (double)a[i] / (double)b;
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}
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}
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}
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template <typename Result = DecimalV2Value>
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static inline DecimalV2Value apply(DecimalV2Value a, DecimalV2Value b, UInt8& is_null) {
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is_null = b.is_zero();
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return a / (is_null ? one : b);
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}
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template <typename Result = ResultType>
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static inline Result apply(A a, B b, UInt8& is_null) {
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is_null = b == 0;
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return static_cast<Result>(a) / (b + is_null);
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}
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};
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struct NameDivide {
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static constexpr auto name = "divide";
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};
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using FunctionDivide = FunctionBinaryArithmetic<DivideFloatingImpl, NameDivide, true>;
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void register_function_divide(SimpleFunctionFactory& factory) {
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factory.register_function<FunctionDivide>();
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}
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} // namespace doris::vectorized
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