golang int to float strong rotation and high-precision rotation operation

golang int to float

Method 1:

Strong turn:

The code is as follows:

import "fmt"
func main() {
 var money int
 money = 1
 (float64(money) / float64(100))
}

Output result: 0.01

Method 2:

High precision rotation:

The code is as follows:

import (
 "fmt"
 "math/big"
 "strconv"
)
func main() {
 totalAmount := 1
 numrator, _ := new().SetPrec(uint(1024)).SetString((totalAmount))
 denominator := (100)
 denominator1 := (numrator, denominator)
 (denominator1)
}

Output result: 0.01

Supplement: golang float32/64 and []byte are transferred

In network protocol development, int, float, bool, etc. often need to be converted into binary data, and float32, 64 and []byte are processed:

import (
  "encoding/binary"
  "math"
)
 
func Float32ToByte(float float32) []byte {
  bits := math.Float32bits(float)
  bytes := make([]byte, 4)
  .PutUint32(bytes, bits)
 
  return bytes
}
 
func ByteToFloat32(bytes []byte) float32 {
  bits := .Uint32(bytes)
 
  return math.Float32frombits(bits)
}
 
func Float64ToByte(float float64) []byte {
  bits := math.Float64bits(float)
  bytes := make([]byte, 8)
  .PutUint64(bytes, bits)
 
  return bytes
}
 
func ByteToFloat64(bytes []byte) float64 {
  bits := .Uint64(bytes)
 
  return math.Float64frombits(bits)
}

The above is personal experience. I hope you can give you a reference and I hope you can support me more. If there are any mistakes or no complete considerations, I would like to give you advice.