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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4maowd.ctr
*/

/**	@file dk4maowd.c The dk4maowd module.
*/


#line 83 "dk4maowd.ctr"


#include "dk4conf.h"

#if	DK4_HAVE_ASSERT_H
#ifndef	ASSERT_H_INCLUDED
#include <assert.h>
#define	ASSERT_H_INCLUDED 1
#endif
#endif

#include "dk4maowd.h"
#include "dk4numco.h"
#include "dk4numl.h"





#line 101 "dk4maowd.ctr"



int
dk4ma_write_wc_decimal_unsigned(
  wchar_t *dptr, size_t sz, dk4_um_t val, size_t padsz, dk4_er_t *erp
)
{
  char		 buf[4*sizeof(dk4_um_t) + 16];	/* Buffer */
  size_t	 used	=	0;		/* Number of used characters */
  size_t	 i	=	0;		/* Copy buffer to destination */
  int		 cc	=	1;		/* Flag: Can continue */
  int		 err	=	0;		/* Flag: Error occued */
  int		 back	=	0;		/* Function result */

#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(0 < sz);
#endif
  if ((NULL != dptr) && (0 < sz)) {
    *dptr = L'\0';
  }
  if (1 == padsz) {
    padsz = dk4numlength(sizeof(dk4_um_t), 0);
  }
  if ((NULL != dptr) && (0 < sz) && (padsz < sz)) {
    do {
      switch((int)(val % (dk4_um_t)10UL)) {
        case 0: {
	  if(used < sizeof(buf)) { buf[used++] = '0'; } else { err = 1; }
	} break;
	case 1: {
	  if(used < sizeof(buf)) { buf[used++] = '1'; } else { err = 1; }
	} break;
	case 2: {
	  if(used < sizeof(buf)) { buf[used++] = '2'; } else { err = 1; }
	} break;
	case 3: {
	  if(used < sizeof(buf)) { buf[used++] = '3'; } else { err = 1; }
	} break;
	case 4: {
	  if(used < sizeof(buf)) { buf[used++] = '4'; } else { err = 1; }
	} break;
	case 5: {
	  if(used < sizeof(buf)) { buf[used++] = '5'; } else { err = 1; }
	} break;
	case 6: {
	  if(used < sizeof(buf)) { buf[used++] = '6'; } else { err = 1; }
	} break;
	case 7: {
	  if(used < sizeof(buf)) { buf[used++] = '7'; } else { err = 1; }
	} break;
	case 8: {
	  if(used < sizeof(buf)) { buf[used++] = '8'; } else { err = 1; }
	} break;
	case 9: {
	  if(used < sizeof(buf)) { buf[used++] = '9'; } else { err = 1; }
	} break;
      }
      val = val / (dk4_um_t)10UL;
      if ((dk4_um_t)0UL == val) { cc = 0; }
    } while((1 == cc) && (0 == err));
    if (0 == err) {
      if (used < sz) {
        if ((0 < padsz) && (used < padsz)) {
	  for (i = 0; i < (padsz - used); i++) {
	    dptr[i] = L'0';
	  }
	  for (i = 0; i < used; i++) {
	    dptr[padsz - 1 - i] = buf[i];
	  }
	  dptr[padsz] = L'\0';
	  back = 1;
	} else {
          for (i = 0; i < used; i++) {
	    dptr[i] = (wchar_t)(buf[used - 1 - i]);
	  }
	  dptr[used] = L'\0';
	  back = 1;
	}
      } else {
        dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
      }
    } else {
      dk4error_set_simple_error_code(erp, DK4_E_BUG);
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}



int
dk4ma_write_wc_decimal_signed(
  wchar_t *dptr, size_t sz, dk4_im_t val, size_t padsz, dk4_er_t *erp
)
{
  int	back	=	0;
#if	DK4_USE_ASSERT
  assert(NULL != dptr);
  assert(0 < sz);
#endif
  if ((NULL != dptr) && (0 < sz)) {
    *dptr = L'\0';
  }
  if (1 == padsz) {
    padsz = dk4numlength(sizeof(dk4_im_t), 1);
  }
  if ((NULL != dptr) && (0 < sz) && (padsz < sz)) {
    if ((dk4_im_t)0L <= val) {
      back = dk4ma_write_wc_decimal_unsigned(
        dptr, sz, (dk4_um_t)val, padsz, erp
      );
    } else {
      if (2 < sz) {
        *(dptr++) = L'-'; sz--;
	if (DK4_IM_MIN == val) {
	  back = dk4ma_write_wc_decimal_unsigned(
	    dptr, sz,
	    ((dk4_um_t)(DK4_IM_MAX) + (dk4_um_t)1UL),
	    ((0 < padsz) ? (padsz - 1) : 0),
	    erp
	  );
	} else {
	  back = dk4ma_write_wc_decimal_unsigned(
	    dptr, sz,
	    (dk4_um_t)((dk4_im_t)0L - val),
	    ((0 < padsz) ? (padsz - 1) : 0),
	    erp
	  );
	}
      } else {
        dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
      }
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}