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std::basic_streambuf::sync

性病：基本[医]Streambuf：：pubsync，std：：basic[医]Streambuf：：sync

int pubsync((1)​
protected: virtual int sync((2)​

将受控字符序列%28缓冲器%29与相关字符序列同步。

1%29次电话sync()最派生的类。

2%29此函数的基类版本没有任何影响。派生类可以覆盖此函数以允许基础设备与缓冲区同步。

对于输出流，这通常导致将PUT区域的内容写入关联序列，即输出缓冲区的刷新。对于输入流，这通常会清空GET区域，并强制从关联序列中重新读取以获取最近的更改。默认行为%28找到，例如，在std::basic_stringbuf%29，是什么都不做。

参数

%280%29

返回值

1%29sync()...

2%29​0​在成功的时候，-1否则。基类版本返回​0​...

例

另见

syncsynchronizes with the underlying storage device (public member function of std::basic_istream)
sync virtualwrites characters to the associated file from the put area (virtual protected member function of std::basic_filebuf)

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