nowfound

Dev tools · July 13, 2023

2x-4x faster strlen() in C

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2x-4x faster strlen() in C launched on July 13, 2023 with 19 votes, #1,484 of 4,347 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.

In plain words

This is a C library implementation that provides optimized versions of the strlen() function, claiming performance improvements of 2x to 4x faster execution compared to standard implementations. It is designed for C developers working on performance-critical applications where string length calculation is a bottleneck. The optimization appears to focus on algorithmic improvements to a fundamental string operation commonly used in systems programming.

written from the facts on this page · September 2026

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