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David Heffernan

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Everything posted by David Heffernan

  1. David Heffernan

    Custom Managed Records Coming in Delphi 10.3

    David Heffernan replied to Marco Cantu's topic in RTL and Delphi Object Pascal

    There's nothing to switch off. You choose to switch it on on a type by type basis.
  2. David Heffernan

    Aligned and atomic read/write

    David Heffernan replied to Jacek Laskowski's topic in RTL and Delphi Object Pascal

    Single bytes are aligned, because they can't straddle cache lines. Reads are therefore atomic, because they are aligned. Two byte reads can straddle cache lines and unaligned reads are not atomic.
  3. David Heffernan

    Aligned and atomic read/write

    David Heffernan replied to Jacek Laskowski's topic in RTL and Delphi Object Pascal

    Actually both of these statements are wrong. Reading unaligned memory is not atomic for reads that straddle cache lines. And unaligned memory access is not slow on modern processors.
  4. David Heffernan

    Managing Version Information Across Builds

    David Heffernan replied to Nathan Wild's topic in Delphi IDE and APIs

    The IDE's tools aren't well designed in my view. Don't set the version information that way, instead make it part of your automated build process.
  5. David Heffernan
    It's not that the override does nothing. There is no override. It makes no sense to me to reintroduce a method of that name.
  6. David Heffernan
    Why don't you override the method from TObject?
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