mirror of
https://github.com/golang/go
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39 lines
856 B
Go
39 lines
856 B
Go
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Don't make a private copy of an array when taking the address of an
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// element.
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package cgotest
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// #include <string.h>
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import "C"
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import (
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"testing"
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"unsafe"
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)
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func test30065(t *testing.T) {
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var a [256]byte
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b := []byte("a")
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C.memcpy(unsafe.Pointer(&a), unsafe.Pointer(&b[0]), 1)
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if a[0] != 'a' {
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t.Errorf("&a failed: got %c, want %c", a[0], 'a')
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}
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b = []byte("b")
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C.memcpy(unsafe.Pointer(&a[0]), unsafe.Pointer(&b[0]), 1)
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if a[0] != 'b' {
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t.Errorf("&a[0] failed: got %c, want %c", a[0], 'b')
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}
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d := make([]byte, 256)
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b = []byte("c")
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C.memcpy(unsafe.Pointer(&d[0]), unsafe.Pointer(&b[0]), 1)
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if d[0] != 'c' {
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t.Errorf("&d[0] failed: got %c, want %c", d[0], 'c')
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}
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}
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