go func 源码
golang func 代码
文件路径：/test/func.go
// 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 simple functions.
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 float32) 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 float32) {
return 7, 7.0
}
func f8(a int) (x int, y float32) {
return 8, 8.0
}
type T struct {
x, y int
}
func (t *T) m10(a int, b float32) int {
return (t.x + a) * (t.y + int(b))
}
func f9(a int) (i int, f float32) {
i = 9
f = 9.0
return
}
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")
r7, s7 := f7(1)
assertequal(r7, 7, "r7")
assertequal(int(s7), 7, "s7")
r8, s8 := f8(1)
assertequal(r8, 8, "r8")
assertequal(int(s8), 8, "s8")
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")
}
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