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operators (std::discard_block_engine)

运算符<<，>%28 std：：Discreard[医]块[医]发动机%29

template< class CharT, class Traits, class Engine, size_t p, size_t r > std::basic_ostream& operator<<( std::basic_ostream& ost, const std::discard_block_engine& e (1)(since C++11)
template< class CharT, class Traits, class Engine, size_t p, size_t r > std::basic_istream<CharT,Traits>& operator>>( std::basic_istream<CharT,Traits>& ist, std::discard_block_engine<Engine,p,r>& e (2)(since C++11)

1%29将伪随机数引擎适配器的内部状态序列化为由一个或多个空格分隔的十进制数序列，并将其插入流中。ost忽略流的填充字符和格式标志，不受影响。

2%29恢复伪随机数引擎适配器的内部状态。e从序列化的表示形式中，该表示是由先前调用operator<<使用具有相同的注入区域和相同的流的流CharT和Traits如果无法反序列化输入，e保持不变failbit提上ist

如果使用os << x而该表示被还原到相同或不同的对象中。y类型相同的is >> y，然后x==y...

参数

ost-output stream to insert the data to
ist-input stream to extract the data from
e-engine adaptor to serialize or restore

返回值

1%29ost

2%29ist

复杂性

例外

1%29%280%29

2%5月29日投掷std::ios::failure设置时failbit

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