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Account for seamless slices in C roc_str_len
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@ -186,7 +186,7 @@ size_t roc_str_len(struct RocStr str)
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uint8_t last_byte = bytes[sizeof(str) - 1];
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uint8_t last_byte_xored = last_byte ^ 0b10000000;
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size_t small_len = (size_t)(last_byte_xored);
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size_t big_len = str.len;
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size_t big_len = str.len & PTRDIFF_MAX; // Account for seamless slices
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// Avoid branch misprediction costs by always
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// determining both small_len and big_len,
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