It all depends a bit how you have these bytes.
Are they in a string variable, in an array or are they still in a file?
Post the relevant code.

RBS

"simonc" wrote in message
...
I am reading a series of bytes (around 2000) from a binary file and want
the
quickest way to test if all the bytes have a value zero. Would this be by
a
string comparison? I'm sure reading the bytes into a byte array and
testing
each one individually is NOT the best way. Incidentally I have to repeat
this
operation several hundred thousand times so any gain in speed will be
significant.

Grateful for advice.