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example of method on a file-specific type

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This commit is contained in:
Stephen M. McQuay 2012-08-27 22:32:36 -06:00
parent 64b1c50ed9
commit dbcd180706
1 changed files with 14 additions and 0 deletions
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14
methods/methods.go
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@ -19,9 +19,23 @@ func (v *vertex) scale(s float64) {
v.y *= s v.y *= s
} }
type myfloat float64
func (f myfloat) abs() float64 {
if f < 0 {
return float64(-f)
}
return float64(f)
}
func main() { func main() {
v := vertex{1.1, 2.2} v := vertex{1.1, 2.2}
fmt.Println(v.abs()) fmt.Println(v.abs())
v.scale(12) v.scale(12)
fmt.Println(v.abs()) fmt.Println(v.abs())
f := myfloat(12.23)
fmt.Println(f.abs())
fmt.Println(-f)
fmt.Println((-f).abs())
} }