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AK: Use the correct data types in bitap_bitwise()
Otherwise the bit twiddling goes all wrong and breaks some boundary cases. Fixes `StringView::contains(31-chars)`.
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@ -19,10 +19,10 @@ constexpr void const* bitap_bitwise(void const* haystack, size_t haystack_length
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{
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VERIFY(needle_length < 32);
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u64 lookup = 0xfffffffe;
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u32 lookup = 0xfffffffe;
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constexpr size_t mask_length = (size_t)((u8)-1) + 1;
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u64 needle_mask[mask_length];
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u32 needle_mask[mask_length];
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for (size_t i = 0; i < mask_length; ++i)
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needle_mask[i] = 0xffffffff;
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@ -27,6 +27,13 @@ TEST_CASE(bitap)
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EXPECT_EQ(result_1, &haystack[2]);
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EXPECT_EQ(result_2, &haystack[4]);
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EXPECT_EQ(result_3, nullptr);
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auto haystack_string = "Main function must return c_int\n"sv;
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auto needle_string = "Main function must return c_int"sv;
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auto result = AK::Detail::bitap_bitwise(haystack_string.characters_without_null_termination(), haystack_string.length(), needle_string.characters_without_null_termination(), needle_string.length());
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EXPECT_NE(result, nullptr);
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}
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TEST_CASE(kmp_one_chunk)
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