Hi Guys, recently, I've been learning the number types conversion. I learned about the ieee 754 round to even when golang converts from uint64 to float64.
However, when I want to convert the float64 to uint64 back, there is a different between functions: `math.Float64Bits` and use `uint64(f)`. Here is the code example: https://go.dev/play/p/Au0YCVKYas8 The output is: ``` 4895412794951729152 1111111111111111111111111111111111111111111111111111111111111111 1.8446744073709552e+19 4895412794951729152 4895412794951729152 9223372036854775808 ``` The 4895412794951729152 is output by math.Float64Bits and the value 9223372036854775808 is directly begot from `uint64(f)`. I am still confusing where the 9223372036854775808 comes from. Could you kindly help me if you have some ideas? -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/eaa5da30-5545-47c5-96aa-a3b0a2eeb1e4n%40googlegroups.com.
