ClickHouse/src/Functions/log2.cpp

#include <Functions/FunctionMathUnary.h>
#include <Functions/FunctionFactory.h>

namespace DB
{
namespace
{

struct Log2Name { static constexpr auto name = "log2"; };
using FunctionLog2 = FunctionMathUnary<UnaryFunctionVectorized<Log2Name, log2>>;

}

REGISTER_FUNCTION(Log2)
{
    factory.registerFunction<FunctionLog2>({}, FunctionFactory::CaseInsensitive);
}

}
Using FastOps library 2019-08-01 00:29:32 +00:00			`#include <Functions/FunctionMathUnary.h>`
Every function in its own file, part 9 (#3733) * Every function in its own file, part 9 [#CLICKHOUSE-2] * Every function in its own file, part 9 [#CLICKHOUSE-2] 2018-12-03 03:17:06 +00:00			`#include <Functions/FunctionFactory.h>`

			`namespace DB`
			`{`
hide symbols in nameless namespace 2020-09-07 18:00:37 +00:00			`namespace`
			`{`
Every function in its own file, part 9 (#3733) * Every function in its own file, part 9 [#CLICKHOUSE-2] * Every function in its own file, part 9 [#CLICKHOUSE-2] 2018-12-03 03:17:06 +00:00
			`struct Log2Name { static constexpr auto name = "log2"; };`
Using FastOps library 2019-08-01 00:29:32 +00:00			`using FunctionLog2 = FunctionMathUnary<UnaryFunctionVectorized<Log2Name, log2>>;`
Every function in its own file, part 9 (#3733) * Every function in its own file, part 9 [#CLICKHOUSE-2] * Every function in its own file, part 9 [#CLICKHOUSE-2] 2018-12-03 03:17:06 +00:00
hide symbols in nameless namespace 2020-09-07 18:00:37 +00:00			`}`

Automated function registration Automated register all functions with below naming convention by iterating through the symbols: void DB::registerXXX(DB::FunctionFactory &) 2022-07-04 07:01:39 +00:00			`REGISTER_FUNCTION(Log2)`
Every function in its own file, part 9 (#3733) * Every function in its own file, part 9 [#CLICKHOUSE-2] * Every function in its own file, part 9 [#CLICKHOUSE-2] 2018-12-03 03:17:06 +00:00			`{`
Add Documentation to FunctionFactory 2022-08-27 20:06:03 +00:00			`factory.registerFunction<FunctionLog2>({}, FunctionFactory::CaseInsensitive);`
Every function in its own file, part 9 (#3733) * Every function in its own file, part 9 [#CLICKHOUSE-2] * Every function in its own file, part 9 [#CLICKHOUSE-2] 2018-12-03 03:17:06 +00:00			`}`

			`}`