Simplify error checking of `binary.Read` by iterating over a slice of pointers.

reader_multi.go

package main

import (
	"bytes"
	"encoding/binary"
	"fmt"
	"os"
)

func main() {
	var b1, b2, b3 byte

	data := []interface{}{&b1, &b2, &b3}

	expectation := []byte{1, 2, 3}

	r := bytes.NewReader(expectation)
	for _, d := range data {
		if err := binary.Read(r, binary.BigEndian, d); err != nil {
			fmt.Fprintln(os.Stderr, err)
			return
		}
	}

	result := []byte{b1, b2, b3}

	fmt.Println(bytes.Compare(result, expectation) == 0)
}

Playground: http://play.golang.org/p/iyanSMTe4C