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解决C4996：‘strcpy‘: This function or variable may be unsafe. Consider using strcpy_s instead.

运维笔记admin2025-01-314浏览0评论

将strcpy替换为strcpy_s就执行成功了

strcpy(tmp,_str)
//替换为
strcpy_s(tmp,strlen(_str)+1, _str);

那strcpy和strcpy_s有什么不同呢？

安全性
strcpy_s 更安全，C11标准引入的安全版本字符串复制函数，防止缓冲区溢出
strcpy不检查缓冲区大小，可能会导致缓冲区溢出
返回值
strcpy_s发生错误返回错误码
strcpy 不返回错误码
参数
strcpy_s显式传递目标缓冲区大小
strcpy不要求传递目标缓冲区大小

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将strcpy替换为strcpy_s就执行成功了

那strcpy和strcpy_s有什么不同呢？

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