I've stumbled across an issue with some float64 numbers, where they get
rounded up as soon as they are assigned to a variable.
package main
import (
"fmt"
"strconv"
)
func main() {
fmt.Println(9999999999999999.0 == 10000000000000000.0) //false
f1 := 9999999999999999.0
f2 := 10000000000000000.0
fmt.Println(f1 == f2) //true
fmt.Println(f1) //1e+16
fmt.Println(f2) //1e+16
fmt.Println(strconv.FormatFloat(f1, 'f', -1, 64)) //10000000000000000
fmt.Println(strconv.FormatFloat(f2, 'f', -1, 64)) //10000000000000000
}
Here is the playground: https://play.golang.org/p/ZZb7I64BxB
Does anyone know a way around this? I know that floats always seem to have
issues with comparisons and accuracy but this happens as soon as they
become variables.
go version go1.7.1 linux/amd64
os: Linux 4.1.12-61.1.14.el7uek.x86_64 GNU/Linux
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