2.3.5 fdev_set_udata
fdev_set_udata(stream, u)
This macro inserts a pointer to user defined data into a FILE stream object.
The user data can be useful for tracking state in the put and get functions supplied to the fdevopen() function.
fdev_set_udata(stream, u)
This macro inserts a pointer to user defined data into a FILE stream object.
The user data can be useful for tracking state in the put and get functions supplied to the fdevopen() function.
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