/
githubmirror
/
go
Обзор
Документация
Войти
/
githubmirror
/
go
Код
Запросы
0
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
test/typeparam/sum.go
50 строк
923 B
Matthew Dempsky
all: avoid use of cmd/compile -G flag in tests
01 мар 2022, 22:45
01 мар 2022, 22:45
e24977d
Код
Авторство
О чём код?
// run // Copyright 2021 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[T interface{ int | float64 }](vec []T) T { var sum T for _, elt := range vec { sum = sum + elt } return sum } func Abs(f float64) float64 { if f < 0.0 { return -f } return f } func main() { vec1 := []int{3, 4} vec2 := []float64{5.8, 9.6} got := Sum[int](vec1) want := vec1[0] + vec1[1] if got != want { panic(fmt.Sprintf("got %d, want %d", got, want)) } got = Sum(vec1) if want != got { panic(fmt.Sprintf("got %d, want %d", got, want)) } fwant := vec2[0] + vec2[1] fgot := Sum[float64](vec2) if Abs(fgot-fwant) > 1e-10 { panic(fmt.Sprintf("got %f, want %f", fgot, fwant)) } fgot = Sum(vec2) if Abs(fgot-fwant) > 1e-10 { panic(fmt.Sprintf("got %f, want %f", fgot, fwant)) } }