On 20 Sep 2016 9:03 a.m., "Robert Solomon" <drrob...@gmail.com> wrote:
>
> FileReadBuffer := make([]byte,ReadBufferSize);
> for { // Repeat Until eof loop.
> n,err := TargetFile.Read(FileReadBuffer);
> if n == 0 || err == io.EOF { break }
> check(err," Unexpected error while reading the target file on which
to compute the hash,");
> hasher.Write(FileReadBuffer);
> FileSize += int64(n);
> } // Repeat Until
The problem you encounter is that .Read() isn't required to fill the buffer
you give it, it can give you less than that.
Handling that requires you to slice the result
eg. hasher.Write(FileReadBuffer[:n]);
But you should avoid calling Read() and Write() and instead use higher
level functions like io.Copy() which will handle these low level details
for you.
Read the io package docs for more information.
https://golang.org/pkg/io/
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