Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
I was wondering if "." could change in some way the content of the two buffers. Since it's string concatenation operator, I was worried that some sort of "stringification" of the two buffers could change them some way (this is why I asked if there's a way to concat two binary buffers). I am still not sure about this.

Perl's strings are "8-bit-clean". You can store binary data in them, and you can use all string operators on them, even if you consider your data binary. Stringification does not happen here, because for Perl, the data is already a string.

Regarding the size of the read data: I am actually trying to put back together some stripes from a dead raid array, so if I am not able to read exactly $bufsize bytes I'd better die away asap :)

Consider using dd conv=noerror, dd_rescue or ddrescue instead of Perl. If you care about your data, don't touch it and pay experts to rescue the data.

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

In reply to Re^3: How to concatenate N binary buffers? by afoken
in thread How to concatenate N binary buffers? by mantager

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others meditating upon the Monastery: (10)
    As of 2014-09-19 11:05 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      How do you remember the number of days in each month?











      Results (135 votes), past polls