Call dput() from C

cput.c

/*  Copyright (C) 2017  Joshua M. Ulrich
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <Rinternals.h>

void cput(SEXP x) {
  SEXP call, result;
  PROTECT(call = lang2(install("dput"), x));
  PROTECT(result = eval(call, R_BaseEnv));
  UNPROTECT(2);
}