github.com/matrixorigin/matrixone@v0.7.0/pkg/vectorize/pi/pi.go (about)

     1  // Copyright 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //	http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package pi
    15  
    16  import (
    17  	"math"
    18  )
    19  
    20  var (
    21  	GetPi func() float64
    22  )
    23  
    24  func init() {
    25  	GetPi = getPiImpl
    26  }
    27  
    28  func getPiImpl() float64 {
    29  	return math.Pi
    30  }