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bleve/numeric_util/float.go
Marty Schoch 07eb6311a8 added utility package for encoding numbers at byte terms
this encoding scheme matches the one used by lucene
it has been packaged separately so that others may
more easily reuse it without using the rest of bleve
2014-08-02 19:03:16 -04:00

29 lines
905 B
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed 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.
package numeric_util
import (
"math"
)
func Float64ToInt64(f float64) int64 {
fasint := int64(math.Float64bits(f))
if fasint < 0 {
fasint = fasint ^ 0x7fffffffffffffff
}
return fasint
}
func Int64ToFloat64(i int64) float64 {
if i < 0 {
i ^= 0x7fffffffffffffff
}
return math.Float64frombits(uint64(i))
}