in reply to Re^3: Is it possible to find the number of matching and non-matching positions in strings using perl code?
in thread Is it possible to find the number of matching and non-matching positions in strings using perl code?

Some CISC processors include string operators so the XOR might actually be a single instruction.

They still loop, just at the microcode level.

There is always a conditional test; address register(s) get incremented; and often a count register gets decremented; for some number of repetitions or until some condition is met. It's still a 'loop' by any standard.


With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

  • Comment on Re^4: Is it possible to find the number of matching and non-matching positions in strings using perl code?

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Re^5: Is it possible to find the number of matching and non-matching positions in strings using perl code?
by Jenda (Abbot) on May 11, 2012 at 17:13 UTC

    Sure it's a loop. That's why I wrote "C-level loop". And you spoke about looping in C as well :-)

    Jenda
    Enoch was right!
    Enjoy the last years of Rome.

      And you spoke about looping in C as well :-)

      You're right! I did.


      With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
      Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
      "Science is about questioning the status quo. Questioning authority".
      In the absence of evidence, opinion is indistinguishable from prejudice.

      The start of some sanity?