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msan2.go
// Copyright 2015 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 /* #include <string.h> #include <stdint.h> #include <stdlib.h> void f(int32_t *p, int n) { int32_t * volatile q = (int32_t *)malloc(sizeof(int32_t) * n); memcpy(p, q, n * sizeof(*p)); free(q); } void g(int32_t *p, int n) { if (p[4] != 1) { abort(); } } */ import "C" import ( "unsafe" ) func main() { a := make([]int32, 10) C.f((*C.int32_t)(unsafe.Pointer(&a[0])), C.int(len(a))) a[4] = 1 C.g((*C.int32_t)(unsafe.Pointer(&a[0])), C.int(len(a))) }
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