Daniel Lemire
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Unsigned comparisons using signed types – Daniel Lemire's blog

Fixed-precision integers are typically represented as either unsigned or signed. In C++20, signed integers must use two’s complement representation, which allows efficient arithmetic operations on both positive and negative values. This method uses the leftmost bit as the sign bit and involves flipping bits and adding one to represent negative numbers. Comparisons between signed types can be conducted as if they were unsigned by adjusting values correctly.

    #c#c++#computing
Mar 24, 2025•2m read time•From lemire.me
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Daniel Lemire

Authored by Daniel Lemire, a computer science professor and researcher, this blog covers a wide rang...

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