# strlen

## Instructions

Write a function that returns the length of a string.

 - `len` is forbidden

## Expected function and structure

```go
func Strlen(str string) int {

}
```

And its output :

```console
student@ubuntu:~/piscine/test$ go build
student@ubuntu:~/piscine/test$ ./test
4
student@ubuntu:~/piscine/test$
```