66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
// Copyright (c) 2023 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package util
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import (
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"math"
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"reflect"
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)
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// extract numeric value (if possible) and returns a float64
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func ExtractNumericValFloat64(v interface{}) (float64, bool) {
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val := reflect.ValueOf(v)
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if !val.IsValid() {
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return 0, false
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}
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switch {
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case val.CanFloat():
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return val.Float(), true
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case val.CanInt():
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return float64(val.Int()), true
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case val.CanUint():
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return float64(val.Uint()), true
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}
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return 0, false
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}
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// extract numeric value (if possible) and returns a float32
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func ExtractNumericValFloat32(v interface{}) (float32, bool) {
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val := reflect.ValueOf(v)
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if !val.IsValid() {
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return 0, false
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}
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switch {
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case val.CanFloat():
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floatVal := val.Float()
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if !IsValidFloat32(floatVal) {
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return 0, false
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}
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return float32(floatVal), true
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case val.CanInt():
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return float32(val.Int()), true
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case val.CanUint():
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return float32(val.Uint()), true
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}
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return 0, false
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}
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func IsValidFloat32(val float64) bool {
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return !math.IsNaN(val) && !math.IsInf(val, 0) && val <= math.MaxFloat32
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}
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