Usually I would expect a panic just as Go does with integer, but I just found this from the Golang spec. It's new information to me that float-point 0 as divisor isn't specified by standard. Floating-point operators
For floating-point and complex numbers, +x is the same as x, while -x is the negation of x. The result of a floating-point or complex division by zero is not specified beyond the IEEE-754 standard; whether a run-time panic <https://golang.org/ref/spec#Run_time_panics> occurs is implementation-specific. A const 0.0 divisor is illegal though: The divisor of a constant division or remainder operation must not be zero: 3.14 / 0.0 // illegal: division by zero On Tuesday, May 9, 2017 at 9:48:53 AM UTC+8, Michael Jones wrote: > > This is the definition of that division. > > What result would you prefer? > > On Mon, May 8, 2017 at 6:45 PM Van Hu <bom....@gmail.com <javascript:>> > wrote: > >> Hi, my colleague found this strange behavior in Go today, seems like a >> bug? >> >> package main >> >> import ( >> "fmt" >> ) >> >> func main() { >> var a float64 = 0.0 >> fmt.Println(1.0 / a) // prints +Inf >> } >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > -- > Michael T. Jones > michae...@gmail.com <javascript:> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
