ostream& write( const char* pch, int nCount );
ostream& write( const unsigned char* puch, int nCount );
ostream& write( const signed char* psch, int nCount );
pch, puch, psch
A pointer to a character array.
nCount
The number of characters to be written.
Inserts a specified number of bytes from a buffer into the stream. If the underlying file was opened in text mode, additional carriage return characters may be inserted. The write function is useful for binary stream output.