https://github.com/Kitware/CMake
Revision 0b8d69269717a225594d2e0d2bfbd61dbbf04fc9 authored by Craig Scott on 10 November 2021, 10:47:18 UTC, committed by Kitware Robot on 10 November 2021, 10:47:33 UTC
8371056fbb Help: Correct inaccuracies in wording for CMP0128 Acked-by: Kitware Robot <kwrobot@kitware.com> Reviewed-by: Raul Tambre <raul@tambre.ee> Merge-request: !6711
Tip revision: 0b8d69269717a225594d2e0d2bfbd61dbbf04fc9 authored by Craig Scott on 10 November 2021, 10:47:18 UTC
Merge topic 'doc-CMP0128' into release-3.22
Merge topic 'doc-CMP0128' into release-3.22
Tip revision: 0b8d692
cmPathLabel.cxx
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmPathLabel.h"
#include <utility>
cmPathLabel::cmPathLabel(std::string label)
: Label(std::move(label))
, Hash(0)
{
// Use a Jenkins one-at-a-time hash with under/over-flow protection
for (char i : this->Label) {
this->Hash += i;
this->Hash += ((this->Hash & 0x003FFFFF) << 10);
this->Hash ^= ((this->Hash & 0xFFFFFFC0) >> 6);
}
this->Hash += ((this->Hash & 0x1FFFFFFF) << 3);
this->Hash ^= ((this->Hash & 0xFFFFF800) >> 11);
this->Hash += ((this->Hash & 0x0001FFFF) << 15);
}
bool cmPathLabel::operator<(const cmPathLabel& l) const
{
return this->Hash < l.Hash;
}
bool cmPathLabel::operator==(const cmPathLabel& l) const
{
return this->Hash == l.Hash;
}
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