Formatting in C++

[John Wildberger]

How can I use cout <<... to perform the equivalent to
printf( " %.2X ",buf[i] );
when buf[]  was declared as   uint8_t  buf[] ;
and the content of buf[i] are hex numbers like 0x5e, or 0xfd, etc ?
I think that I would have to include #include <iomanip> ,but I am at a loss 
how to accomplish the formatting.
John

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