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std::fwide

性病：：Fwide

Defined in header ​​
int fwide( std::FILE* stream, int mode ​​

如果mode > 0，试图stream面向宽的。如果mode < 0，试图stream面向字节的。如果mode==0，只查询流的当前方向。

如果通过执行输出或先前对fwide%29的调用确定了流的方向(%28)，则此函数不执行任何操作。

参数

stream-pointer to the C I/O stream to modify or query
mode-integer value greater than zero to set the stream wide, less than zero to set the stream narrow, or zero to query only

返回值

如果流在调用后是宽方向的，则整数大于零；如果在调用后流面向字节，则小于零；如果流没有定向，则小于零。

另见

fopenopens a file (function)

c FWARE文件

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