| // 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") | 
 | } |