/* Support for operator<< routines.

   THE FUNCTIONS IN THIS FILE ARE FOR INTERNAL USE ONLY.  THEY'RE ALMOST

   CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR COMPLETELY IN

   FUTURE GNU MP RELEASES.

Copyright 2001 Free Software Foundation, Inc.

This file is part of the GNU MP Library.

The GNU MP Library is free software; you can redistribute it and/or modify

it under the terms of either:

  * the GNU Lesser General Public License as published by the Free

    Software Foundation; either version 3 of the License, or (at your

    option) any later version.

or

  * 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.

or both in parallel, as here.

The GNU MP 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 General Public License

for more details.

You should have received copies of the GNU General Public License and the

GNU Lesser General Public License along with the GNU MP Library.  If not,

see https://www.gnu.org/licenses/.  */

#include <iostream>

#include <stdarg.h>    /* for va_list and hence doprnt_funs_t */

#include <string.h>

#include "gmp.h"

#include "gmp-impl.h"

using namespace std;

/* Don't need "format" for operator<< routines, just "memory" and "reps".

   Omitting gmp_asprintf_format lets us avoid dragging vsnprintf into the

   link.  __gmp_asprintf_final will be called directly and doesn't need to

   be in the struct.  */

const struct doprnt_funs_t  __gmp_asprintf_funs_noformat = {

  NULL,

  (doprnt_memory_t) __gmp_asprintf_memory,

  (doprnt_reps_t)   __gmp_asprintf_reps,

  NULL

};

void

__gmp_doprnt_params_from_ios (struct doprnt_params_t *p, ios &o)

{

  if ((o.flags() & ios::basefield) == ios::hex)

    {

      p->expfmt = "@%c%02d";

      p->base = (o.flags() & ios::uppercase ? -16 : 16);

    }

  else

    {

      p->expfmt = (o.flags() & ios::uppercase ? "E%c%02d" : "e%c%02d");

      if ((o.flags() & ios::basefield) == ios::oct)

        p->base = 8;

      else

        p->base = 10;

    }

  /* "general" if none or more than one bit set */

  if ((o.flags() & ios::floatfield) == ios::fixed)

    p->conv = DOPRNT_CONV_FIXED;

  else if ((o.flags() & ios::floatfield) == ios::scientific)

    p->conv = DOPRNT_CONV_SCIENTIFIC;

  else

    p->conv = DOPRNT_CONV_GENERAL;

  p->exptimes4 = 0;

  p->fill = o.fill();

  /* "right" if more than one bit set */

  if ((o.flags() & ios::adjustfield) == ios::left)

    p->justify = DOPRNT_JUSTIFY_LEFT;

  else if ((o.flags() & ios::adjustfield) == ios::internal)

    p->justify = DOPRNT_JUSTIFY_INTERNAL;

  else

    p->justify = DOPRNT_JUSTIFY_RIGHT;

  /* ios::fixed allows prec==0, others take 0 as the default 6.

     Don't allow negatives (they do bad things to __gmp_doprnt_float_cxx).  */

  p->prec = MAX (0, o.precision());

  if (p->prec == 0 && p->conv != DOPRNT_CONV_FIXED)

    p->prec = 6;

  /* for hex showbase is always, for octal only non-zero */

  if (o.flags() & ios::showbase)

    p->showbase = ((o.flags() & ios::basefield) == ios::hex

                   ? DOPRNT_SHOWBASE_YES : DOPRNT_SHOWBASE_NONZERO);

  else

    p->showbase = DOPRNT_SHOWBASE_NO;

  p->showpoint = ((o.flags() & ios::showpoint) != 0);

  /* in fixed and scientific always show trailing zeros, in general format

     show them if showpoint is set (or so it seems) */

  if ((o.flags() & ios::floatfield) == ios::fixed

      || (o.flags() & ios::floatfield) == ios::scientific)

    p->showtrailing = 1;

  else

    p->showtrailing = p->showpoint;

  p->sign = (o.flags() & ios::showpos ? '+' : '\0');

  p->width = o.width();

  /* reset on each output */

  o.width (0);

}