ClickHouse/dbms/src/Functions/tests/number_traits.cpp

70 lines
2.8 KiB
C++

#include <iostream>
#include <DataTypes/NumberTraits.h>
void printType(DB::UInt8 x) { std::cout << "UInt8"; }
void printType(DB::UInt16 x) { std::cout << "UInt16"; }
void printType(DB::UInt32 x) { std::cout << "UInt32"; }
void printType(DB::UInt64 x) { std::cout << "UInt64"; }
void printType(DB::Int8 x) { std::cout << "Int8"; }
void printType(DB::Int16 x) { std::cout << "Int16"; }
void printType(DB::Int32 x) { std::cout << "Int32"; }
void printType(DB::Int64 x) { std::cout << "Int64"; }
void printType(DB::Float32 x) { std::cout << "Float32"; }
void printType(DB::Float64 x) { std::cout << "Float64"; }
void printType(DB::NumberTraits::Error x) { std::cout << "Error"; }
template <typename T0, typename T1>
void ifRightType()
{
printType(T0());
std::cout << ", ";
printType(T1());
std::cout << " -> ";
printType(typename DB::NumberTraits::ResultOfIf<T0, T1>::Type());
std::cout << std::endl;
}
template <typename T0>
void ifLeftType()
{
ifRightType<T0, DB::UInt8>();
ifRightType<T0, DB::UInt16>();
ifRightType<T0, DB::UInt32>();
ifRightType<T0, DB::UInt64>();
ifRightType<T0, DB::Int8>();
ifRightType<T0, DB::Int16>();
ifRightType<T0, DB::Int32>();
ifRightType<T0, DB::Int64>();
ifRightType<T0, DB::Float32>();
ifRightType<T0, DB::Float64>();
}
int main(int argc, char ** argv)
{
printType(DB::NumberTraits::ResultOfAdditionMultiplication<DB::UInt8, DB::UInt8>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfAdditionMultiplication<DB::UInt8, DB::Int32>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfAdditionMultiplication<DB::UInt8, DB::Float32>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfSubtraction<DB::UInt8, DB::UInt8>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfSubtraction<DB::UInt16, DB::UInt8>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfSubtraction<DB::UInt16, DB::Int8>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfFloatingPointDivision<DB::UInt16, DB::Int16>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfFloatingPointDivision<DB::UInt32, DB::Int16>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfIntegerDivision<DB::UInt8, DB::Int16>::Type()); std::cout << std::endl;
printType(DB::NumberTraits::ResultOfModulo<DB::UInt32, DB::Int8>::Type()); std::cout << std::endl;
ifLeftType<DB::UInt8>();
ifLeftType<DB::UInt16>();
ifLeftType<DB::UInt32>();
ifLeftType<DB::UInt64>();
ifLeftType<DB::Int8>();
ifLeftType<DB::Int16>();
ifLeftType<DB::Int32>();
ifLeftType<DB::Int64>();
ifLeftType<DB::Float32>();
ifLeftType<DB::Float64>();
return 0;
}