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dac2b060e4
There's always a possibility that the has will end up as equal to zero due to overflowing. See the tests for strings whose hash overflow. Yes, there's a check for whether the hash already was calculated... and strings with a hash equal to zero always need the hash recalculated, in one of 2^32 respectively 2^64 cases - which should not be a major issue.
21 lines
310 B
PHP
21 lines
310 B
PHP
--TEST--
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Accept hashes being equal to zero
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--FILE--
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<?php
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$hashes = [
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"\x8e\x1a\x63\x0f\x61" => 32,
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"\xf7\x17\x7f\x7f\x7f\x7f\x7f\x7f\x7f\x6b\x03\x6a\x13\x63\x17\x6b\x1d\x67" => 64,
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];
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foreach ($hashes as $hash => $bits) {
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var_dump($hashes[$hash], $bits);
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}
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?>
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--EXPECT--
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int(32)
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int(32)
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int(64)
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int(64)
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