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Source file doc/progs/sum.go

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package main

import "fmt"

func sum(a []int) int { // returns an int
    s := 0
    for i := 0; i < len(a); i++ {
        s += a[i]
    }
    return s
}


func main() {
    s := sum(&[3]int{1, 2, 3}) // a slice of the array is passed to sum
    fmt.Print(s, "\n")
}