streambuf::putn Method
Writes a number of characters to the stream.
virtual pplx::task<size_t> putn(
const _CharType *ptr,
size_t count
);
Parameters
ptr
A pointer to the block of data to be written.count
The number of characters to write.
Return Value
The number of characters actually written, either 'count' or 0.
Requirements
Header: astreambuf.h
Namespace: concurrency::streams