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[Win] [64-bit] Resolve Microsoft warning C4319 on BitVector.cpp
https://bugs.webkit.org/show_bug.cgi?id=180490 Patch by Basuke Suzuki <Basuke.Suzuki@sony.com> on 2017-12-07 Reviewed by Alex Christensen. bitsInPointer() returns unsigned which is smaller than size_t. "~"(negate) operator is applied before extending its size which result filled with zero. This may be potentially a bug if numBits is greater than max value of unsigned long (which is not practical). * wtf/BitVector.cpp: (WTF::BitVector::OutOfLineBits::create): Canonical link: https://commits.webkit.org/196488@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@225668 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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