|  | // run | 
|  |  | 
|  | // 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. | 
|  |  | 
|  | // Test functions of many signatures. | 
|  |  | 
|  | package main | 
|  |  | 
|  | func assertequal(is, shouldbe int, msg string) { | 
|  | if is != shouldbe { | 
|  | print("assertion fail" + msg + "\n") | 
|  | panic(1) | 
|  | } | 
|  | } | 
|  |  | 
|  | func f1() { | 
|  | } | 
|  |  | 
|  | func f2(a int) { | 
|  | } | 
|  |  | 
|  | func f3(a, b int) int { | 
|  | return a + b | 
|  | } | 
|  |  | 
|  | func f4(a, b int, c float64) int { | 
|  | return (a+b)/2 + int(c) | 
|  | } | 
|  |  | 
|  | func f5(a int) int { | 
|  | return 5 | 
|  | } | 
|  |  | 
|  | func f6(a int) (r int) { | 
|  | return 6 | 
|  | } | 
|  |  | 
|  | func f7(a int) (x int, y float64) { | 
|  | return 7, 7.0 | 
|  | } | 
|  |  | 
|  |  | 
|  | func f8(a int) (x int, y float64) { | 
|  | return 8, 8.0 | 
|  | } | 
|  |  | 
|  | type T struct { | 
|  | x, y int | 
|  | } | 
|  |  | 
|  | func (t *T) m10(a int, b float64) int { | 
|  | return (t.x + a) * (t.y + int(b)) | 
|  | } | 
|  |  | 
|  |  | 
|  | func f9(a int) (in int, fl float64) { | 
|  | i := 9 | 
|  | f := float64(9) | 
|  | return i, f | 
|  | } | 
|  |  | 
|  |  | 
|  | func main() { | 
|  | f1() | 
|  | f2(1) | 
|  | r3 := f3(1, 2) | 
|  | assertequal(r3, 3, "3") | 
|  | r4 := f4(0, 2, 3.0) | 
|  | assertequal(r4, 4, "4") | 
|  | r5 := f5(1) | 
|  | assertequal(r5, 5, "5") | 
|  | r6 := f6(1) | 
|  | assertequal(r6, 6, "6") | 
|  | var r7 int | 
|  | var s7 float64 | 
|  | r7, s7 = f7(1) | 
|  | assertequal(r7, 7, "r7") | 
|  | assertequal(int(s7), 7, "s7") | 
|  | var r8 int | 
|  | var s8 float64 | 
|  | r8, s8 = f8(1) | 
|  | assertequal(r8, 8, "r8") | 
|  | assertequal(int(s8), 8, "s8") | 
|  | var r9 int | 
|  | var s9 float64 | 
|  | r9, s9 = f9(1) | 
|  | assertequal(r9, 9, "r9") | 
|  | assertequal(int(s9), 9, "s9") | 
|  | var t *T = new(T) | 
|  | t.x = 1 | 
|  | t.y = 2 | 
|  | r10 := t.m10(1, 3.0) | 
|  | assertequal(r10, 10, "10") | 
|  | } |