---
title: 不支持__ builtin___snprintf_chk
description: "```"
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---
# 不支持__ builtin___snprintf_chk

#### 错误信息

```
error: no member named '__builtin___snprintf_chk' in
```


#### 问题介绍

Clang暂不支持检查built-in函数格式化输出，会报出warning，当开启-Werror选项时升级为error。


#### 解决方案

添加编译选项-Wno-builtin-memcpy-chk-size规避该告警