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ignite/modules/platforms/cpp/common/src/guid.cpp at master · apache/ignite · GitHub
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#
include
"
ignite/guid.h
"
namespace
ignite
{
Guid::Guid
() : most(
0
), least(
0
)
{
//
No-op.
}
Guid::Guid
(
int64_t
most,
int64_t
least) : most(most), least(least)
{
//
No-op.
}
int64_t
Guid::GetMostSignificantBits
()
const
{
return
most;
}
int64_t
Guid::GetLeastSignificantBits
()
const
{
return
least;
}
int32_t
Guid::GetVersion
()
const
{
return
static_cast
<
int32_t
>((most >>
12
) &
0x0f
);
}
int32_t
Guid::GetVariant
()
const
{
uint64_t
least0 =
static_cast
<
uint64_t
>(least);
return
static_cast
<
int32_t
>((least0 >> (
64
- (least0 >>
62
))) & (least >>
63
));
}
int32_t
Guid::GetHashCode
()
const
{
int64_t
hilo = most ^ least;
return
static_cast
<
int32_t
>(hilo >>
32
) ^
static_cast
<
int32_t
>(hilo);
}
int64_t
Guid::Compare
(
const
Guid& other)
const
{
if
(most < other.
most
)
return
-
1
;
if
(most > other.
most
)
return
1
;
if
(least < other.
least
)
return
-
1
;
if
(least > other.
least
)
return
1
;
return
0
;
}
bool
operator
==(
const
Guid& val1,
const
Guid& val2)
{
return
val1.
Compare
(val2) ==
0
;
}
bool
operator
!=(
const
Guid& val1,
const
Guid& val2)
{
return
val1.
Compare
(val2) !=
0
;
}
bool
operator
<(
const
Guid& val1,
const
Guid& val2)
{
return
val1.
Compare
(val2) <
0
;
}
bool
operator
<=(
const
Guid& val1,
const
Guid& val2)
{
return
val1.
Compare
(val2) <=
0
;
}
bool
operator
>(
const
Guid& val1,
const
Guid& val2)
{
return
val1.
Compare
(val2) >
0
;
}
bool
operator
>=(
const
Guid& val1,
const
Guid& val2)
{
return
val1.
Compare
(val2) >=
0
;
}
}
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