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Marek Knápek@programming.dev to Programming@programming.dev · 2 years ago

The Little Things: The Missing Performance in std::vector

codingnest.com

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The Little Things: The Missing Performance in std::vector

codingnest.com

Marek Knápek@programming.dev to Programming@programming.dev · 2 years ago
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`std::vector` is often said to be the default container, because it provides good baseline performance for common operations. Recently, I experimented with a simple API change that can improve the performance of a common usage pattern by 10+ %.
  • robinm@programming.dev
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    2 years ago

    In C++ integer overflow is UB so this edge case cannot exist

    • kornel@programming.dev
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      2 years ago

      Only signed overflow. size_t is unsigned.

      • robinm@programming.dev
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        2 years ago

        That’s totally right but I thought you were talking about signed numbers since you said “integer overflow”. I forgot that len is usually unsigned in C++.

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