1/*
 2    Copyright 2018 0KIMS association.
 3
 4    This file is part of circom (Zero Knowledge Circuit Compiler).
 5
 6    circom is a free software: you can redistribute it and/or modify it
 7    under the terms of the GNU General Public License as published by
 8    the Free Software Foundation, either version 3 of the License, or
 9    (at your option) any later version.
10
11    circom is distributed in the hope that it will be useful, but WITHOUT
12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13    or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
14    License for more details.
15
16    You should have received a copy of the GNU General Public License
17    along with circom. If not, see <https://www.gnu.org/licenses/>.
18*/
19
20template MultiMux1(n) {
21    signal input c[n][2];  // Constants
22    signal input s;   // Selector
23    signal output out[n];
24
25    for (var i=0; i<n; i++) {
26
27        out[i] <== (c[i][1] - c[i][0])*s + c[i][0];
28
29    }
30}
31
32template Mux1() {
33    var i;
34    signal input c[2];  // Constants
35    signal input s;   // Selector
36    signal output out;
37
38    component mux = MultiMux1(1);
39
40    for (i=0; i<2; i++) {
41        mux.c[0][i] <== c[i];
42    }
43
44    s ==> mux.s;
45
46    mux.out[0] ==> out;
47}