Solution of Exercise: Readers

exercise-reader.go

package main

import "golang.org/x/tour/reader"

type MyReader struct{}

// TODO: Add a Read([]byte) (int, error) method to MyReader.

func (r *MyReader) Read (b []byte) (n int, err error){
	b = b[:cap(b)]
	for i := range b {
		b[i] = 'A'
	}
	return len(b), nil

}

func main() {
	reader.Validate(&MyReader{})
}