https://www.lomont.org/tags/c++/ Recent content in C++ on Lomont.org Hugo en-us Sat, 24 Jun 2023 10:36:07 -0400 https://www.lomont.org/posts/2023/ssim/ Sat, 24 Jun 2023 10:36:07 -0400 https://www.lomont.org/posts/2023/ssim/ <p>Variation among SSIM implementations make comparing results a mess. This version matches the output of the original, unlike most of those in common use as of 2023.</p> https://www.lomont.org/posts/2023/accuratecolorconversions/ Tue, 06 Jun 2023 07:12:30 -0400 https://www.lomont.org/posts/2023/accuratecolorconversions/ <p>This is a quick note for converting byte values colors in 0-255 back and forth to floating-point colors in 0-1 which avoids common errors.</p> https://www.lomont.org/posts/2022/a-better-quadratic-formula-algorithm/ Sat, 27 Aug 2022 08:12:01 -0400 https://www.lomont.org/posts/2022/a-better-quadratic-formula-algorithm/ <p>A robust algorithm for computing roots of quadratic equations, much better than common code.</p> https://www.lomont.org/posts/2019/lines-of-code/ Sun, 23 Jun 2019 12:10:43 -0400 https://www.lomont.org/posts/2019/lines-of-code/ <p>Over decades I&rsquo;ve written a lot of personal code. I made a bar chart race showing how many lines I&rsquo;ve written in different languages over time.</p> https://www.lomont.org/posts/2017/unit-random/ Sun, 05 Mar 2017 17:08:08 -0400 https://www.lomont.org/posts/2017/unit-random/ <p>How does one generate uniform random numbers in [0,1] using IEEE 754 floating point formats? It&rsquo;s tricky.</p> https://www.lomont.org/posts/2017/divisibility-testing/ Tue, 21 Feb 2017 17:08:08 -0400 https://www.lomont.org/posts/2017/divisibility-testing/ <p>Here&rsquo;s bit tricks for efficient divisibility testing.</p>