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From:Michael Widenius Date:March 11 2009 11:07am
Subject:Re: MySQL University Session: Good Coding Style follow up
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Hi!

>>>>> "Jay" == Jay Pipes <Jay.Pipes@stripped> writes:

Jay> -----BEGIN PGP SIGNED MESSAGE-----
Jay> Hash: SHA1

Jay> Michael Widenius wrote:
Roy> Templates are already introduced - they need guidelines for when and why.
>> 
>> Templates are fine to use as long as they are used only to remove
>> casts in the code, not to generate code.

Jay> Templates remove casts by generating code.

One line for one line is fine (the same way as a define).
And just enforcing types doesn't actually generate any assembler code
when comparing with the original code; It just removes compiler checks.

As long as this is the case, tools like gcov and gdb etc works fine.

Things starts to fall appart when you have templates that generates
many lines of code as then you can't be sure what code are used and
debugging also gets to be more difficult.  Not forgetting about code
explosions.

Regards,
Monty
Thread
MySQL University Session: Good Coding Style follow upKonstantin Osipov5 Mar
  • Re: MySQL University Session: Good Coding Style follow upRoy Lyseng5 Mar
    • Re: MySQL University Session: Good Coding Style follow upKonstantin Osipov5 Mar
      • Re: MySQL University Session: Good Coding Style follow upMichael Widenius8 Mar
    • Re: MySQL University Session: Good Coding Style follow upMichael Widenius8 Mar
      • Re: MySQL University Session: Good Coding Style follow upRoy Lyseng8 Mar
        • Re: MySQL University Session: Good Coding Style follow upMichael Widenius9 Mar
          • Re: MySQL University Session: Good Coding Style follow upJay Pipes9 Mar
            • Re: MySQL University Session: Good Coding Style follow upMichael Widenius11 Mar
              • Re: MySQL University Session: Good Coding Style follow upJay Pipes11 Mar
                • Re: MySQL University Session: Good Coding Style follow upMichael Widenius18 Mar
      • Re: MySQL University Session: Good Coding Style follow upStewart Smith17 Mar
  • Re: MySQL University Session: Good Coding Style follow upMARK CALLAGHAN5 Mar
    • Re: MySQL University Session: Good Coding Style follow upIngo Strüwing5 Mar
      • Re: MySQL University Session: Good Coding Style follow upMARK CALLAGHAN5 Mar
        • Re: MySQL University Session: Good Coding Style follow upIngo Strüwing5 Mar
          • Re: MySQL University Session: Good Coding Style follow upMARK CALLAGHAN5 Mar
            • Re: MySQL University Session: Good Coding Style follow upJay Pipes5 Mar
              • Re: MySQL University Session: Good Coding Style follow upMichael Widenius8 Mar
                • Re: MySQL University Session: Good Coding Style follow upJay Pipes8 Mar
            • Re: MySQL University Session: Good Coding Style follow upKonstantin Osipov5 Mar
              • Re: MySQL University Session: Good Coding Style follow upMARK CALLAGHAN5 Mar
              • Re: MySQL University Session: Good Coding Style follow upMichael Widenius8 Mar
    • Re: MySQL University Session: Good Coding Style follow upSergey Petrunia5 Mar
  • Re: MySQL University Session: Good Coding Style follow upDavi Arnaut5 Mar
    • Re: MySQL University Session: Good Coding Style follow upKonstantin Osipov5 Mar
      • Re: MySQL University Session: Good Coding Style follow upDavi Arnaut5 Mar
  • Re: MySQL University Session: Good Coding Style follow upJonas Oreland5 Mar
    • Re: MySQL University Session: Good Coding Style follow upKonstantin Osipov5 Mar
      • Re: MySQL University Session: Good Coding Style follow upJonas Oreland5 Mar
        • Re: MySQL University Session: Good Coding Style follow upshlomo.swidler5 Mar
          • Re: MySQL University Session: Good Coding Style follow upMichael Izioumtchenko5 Mar
        • Re: MySQL University Session: Good Coding Style follow upMichael Izioumtchenko5 Mar
        • Re: MySQL University Session: Good Coding Style follow upStewart Smith17 Mar
      • Re: MySQL University Session: Good Coding Style follow upMichael Widenius8 Mar
Re: MySQL University Session: Good Coding Style follow upKonstantin Osipov5 Mar
  • Re: MySQL University Session: Good Coding Style follow upMARK CALLAGHAN5 Mar
  • Re: MySQL University Session: Good Coding Style follow upMichael Widenius6 Mar
    • Re: MySQL University Session: Good Coding Style follow upKonstantin Osipov6 Mar
      • Re: MySQL University Session: Good Coding Style follow upMARK CALLAGHAN6 Mar
      • Re: MySQL University Session: Good Coding Style follow upMichael Widenius8 Mar