mirror of
https://github.com/cgrates/cgrates.git
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100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
/*
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Real-time Online/Offline Charging System (OerS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package utils
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import (
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"bytes"
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"fmt"
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"strconv"
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"github.com/ericlagergren/decimal"
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)
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func DivideBig(x, y *decimal.Big) *decimal.Big {
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return new(decimal.Big).Quo(x, y)
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}
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func MultiplyBig(x, y *decimal.Big) *decimal.Big {
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return new(decimal.Big).Mul(x, y)
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}
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func AddBig(x, y *decimal.Big) *decimal.Big {
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return new(decimal.Big).Add(x, y)
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}
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func SubstractBig(x, y *decimal.Big) *decimal.Big {
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return new(decimal.Big).Sub(x, y)
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}
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func NewDecimalFromFloat64(f float64) (*Decimal, error) {
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d, canSet := new(decimal.Big).SetString(strconv.FormatFloat(f, 'f', -1, 64))
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if !canSet {
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return nil, fmt.Errorf("cannot convert float64 to decimal.Big")
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}
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return &Decimal{d}, nil
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}
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type Decimal struct {
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*decimal.Big
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}
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//UnmarshalBinary implements the method for binaryUnmarshal interface for Msgpack encoding
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func (d *Decimal) UnmarshalBinary(data []byte) (err error) {
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if d == nil {
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d = &Decimal{new(decimal.Big)}
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}
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if d.Big == nil {
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d.Big = new(decimal.Big)
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}
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return d.Big.UnmarshalText(data)
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}
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//MarshalBinary implements the method for binaryMarshal interface for Msgpack encoding
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func (d *Decimal) MarshalBinary() ([]byte, error) {
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if d.Big == nil {
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d.Big = new(decimal.Big)
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}
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return d.Big.MarshalText()
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}
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//UnmarshalJSON implements the method for jsonUnmarshal for JSON encoding
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func (d *Decimal) UnmarshalJSON(data []byte) (err error) {
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if d == nil {
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d = &Decimal{new(decimal.Big)}
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}
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if d.Big == nil {
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d.Big = new(decimal.Big)
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}
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return d.Big.UnmarshalText(data)
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}
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//MarshalJSON implements the method for jsonMarshal for JSON encoding
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func (d *Decimal) MarshalJSON() ([]byte, error) {
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x, err := d.MarshalText()
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return bytes.Trim(x, `"`), err
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}
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//Clone return a copy of the Decimal
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func (d *Decimal) Clone() (d2 *Decimal) {
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d2 = new(Decimal)
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d2.Big = new(decimal.Big)
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d2.Big.Copy(d.Big)
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return
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}
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