Basti batic420
satyrius
/ exercise-56.go
Created
October 23, 2013 06:33
A Tour of Go.
Exercise: Errors. Copy your Sqrt function from the earlier exercises and modify it to return an error value. Sqrt should return a non-nil error value when given a negative number, as it doesn't support complex numbers. Create a new type type ErrNegativeSqrt float64
and make it an error by giving it a func (e ErrNegativeSqrt) Error(…
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| package main | |
| import ( | |
| "fmt" | |
| ) | |
| type ErrNegativeSqrt float64 | |
| func (e ErrNegativeSqrt) Error() string { | |
| return fmt.Sprintf("cannot Sqrt negative number: %v", float64(e)) |
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| package main | |
| import ( | |
| "fmt" | |
| "strings" | |
| "strconv" | |
| ) | |
| type IPAddr [4]byte |