/
utils.go
79 lines (68 loc) · 1.65 KB
/
utils.go
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// Copyright 2020 Consensys Software 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.
// Code generated by consensys/gnark-crypto DO NOT EDIT
package iop
import (
"github.com/consensys/gnark-crypto/ecc/bw6-761/fr"
)
//----------------------------------------------------
// exp functions until 5
func exp0(x fr.Element) fr.Element {
var res fr.Element
res.SetOne()
return res
}
func exp1(x fr.Element) fr.Element {
return x
}
func exp2(x fr.Element) fr.Element {
return *x.Square(&x)
}
func exp3(x fr.Element) fr.Element {
var res fr.Element
res.Square(&x).Mul(&res, &x)
return res
}
func exp4(x fr.Element) fr.Element {
x.Square(&x).Square(&x)
return x
}
func exp5(x fr.Element) fr.Element {
var res fr.Element
res.Square(&x).Square(&res).Mul(&res, &x)
return res
}
// doesn't return any errors, it is a private method, that
// is assumed to be called with correct arguments.
func smallExp(x fr.Element, n int) fr.Element {
if n == 0 {
return exp0(x)
}
if n == 1 {
return exp1(x)
}
if n == 2 {
return exp2(x)
}
if n == 3 {
return exp3(x)
}
if n == 4 {
return exp4(x)
}
if n == 5 {
return exp5(x)
}
return fr.Element{}
}