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Optional SIMD strchrnul #594

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Optional SIMD strchrnul #594

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@ncruces ncruces commented Jul 11, 2025

Continuing #580. strchrnul is used by strchr, strcspn and many other places in libc. The implementation is a matchup between strlen and memchr.

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ncruces commented Jul 15, 2025

The test for memchr needed a fix: the unsigned to signed pos < length + 2 comparison meant that, depending on compile flags, the inner loop might not run.

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