File dtostrf.c

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/*
  dtostrf - Emulation for dtostrf function from avr-libc
  Copyright (c) 2013 Arduino.  All rights reserved.
  Written by Cristian Maglie <[email protected]>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#include <Arduino.h>

char *dtostrf(double val, signed char width, unsigned char prec, char *sout) {
    char fmt[20];
    sprintf(fmt, "%%%d.%df", width, prec);
    sprintf(sout, fmt, val);
    return sout;
}