文件操作 - issue37975.go
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文件: /usr/share/go-1.23/test/fixedbugs/issue37975.go
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// run // Copyright 2020 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. // Make sure runtime.panicmakeslice* are called. package main import "strings" func main() { // Test typechecking passes if len is valid // but cap is out of range for len's type. var x byte _ = make([]int, x, 300) capOutOfRange := func() { i := 2 s := make([]int, i, 1) s[0] = 1 } lenOutOfRange := func() { i := -1 s := make([]int, i, 3) s[0] = 1 } tests := []struct { f func() panicStr string }{ {capOutOfRange, "cap out of range"}, {lenOutOfRange, "len out of range"}, } for _, tc := range tests { shouldPanic(tc.panicStr, tc.f) } } func shouldPanic(str string, f func()) { defer func() { err := recover() runtimeErr := err.(error).Error() if !strings.Contains(runtimeErr, str) { panic("got panic " + runtimeErr + ", want " + str) } }() f() }
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