On Thu, Jan 5, 2017 at 5:29 PM, hui zhang <fastfad...@gmail.com> wrote:
>
> How can I compare the interface ?
> I want to implement a generic function.
> the <= >= report error in this code
>
> func InRange(a, b, c interface{}) bool {
> if c >= a && c <= b {
> return true
> } else {
> return false
> }
> }
You can only compare interface values for equality.
To compare for ordering you need to use a type assertion or type
switch to some type that supports ordering. Or if, for example, you
know that the values contain signed integers, you could use
reflect.ValueOf(a).Int().
Ian
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