---
title: aclrtMemAccessFlags
description: "```"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/API/runtimeapi/aclcppdevg_03_2046.html
sourcePath: /source/zh/canncommercial/900/API/runtimeapi/aclcppdevg_03_2046.html
indexId: 1522f8c1729e3254196ece64cab7f178351f67e6f63912b92c615cf2aa70175c68
---
# aclrtMemAccessFlags

```
typedef enum {
    ACL_RT_MEM_ACCESS_FLAGS_NONE = 0x0,      // 该地址范围不可访问 
    ACL_RT_MEM_ACCESS_FLAGS_READ = 0x1,      // 地址范围可读
    ACL_RT_MEM_ACCESS_FLAGS_READWRITE = 0x3, // 地址范围可读可写
} aclrtMemAccessFlags;
```