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path: root/support/dktools/dk4maiwddi.c
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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: dk4maiwddi.ctr
*/

/**	@file dk4maiwddi.c The dk4maiwddi module.
*/


#line 81 "dk4maiwddi.ctr"


#include "dk4conf.h"

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

#include "dk4maiwddi.h"
#include "dk4maiwddu.h"
#include "dk4numco.h"


int
dk4ma_input_wc_dec_dk4_im_t(
  dk4_im_t	 *rp,
  const wchar_t	 *src,
  const wchar_t	**endptr,
  int		  atg,
  dk4_er_t	 *erp
)
{
  const wchar_t	*ep	=	NULL;
  dk4_um_t	 res	=	(dk4_um_t)0UL;
  int		 back	=	0;
#if	DK4_USE_ASSERT
  assert(NULL != rp);
  assert(NULL != src);
#endif
  if ((NULL != rp) && (NULL != src)) {
    if (L'-' == *src) {
      if (0 != dk4ma_input_wc_dec_dk4_um_t(&res, ++src, &ep, atg, erp)) {
        if (((dk4_um_t)(DK4_IM_MAX) + (dk4_um_t)1UL) == res) {
	  *rp = DK4_IM_MIN;
	  back = 1;
	} else {
	  if (((dk4_um_t)(DK4_IM_MAX)) >= res) {
	    *rp = (dk4_im_t)0L - (dk4_im_t)res;
	    back = 1;
	  } else {
	    dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
	  }
	}
      }
    } else {
      if (L'+' == *src) { src++; }
      if (0 != dk4ma_input_wc_dec_dk4_um_t(&res, src, &ep, atg, erp)) {
        if (((dk4_um_t)(DK4_IM_MAX)) >= res) {
	  *rp = (dk4_im_t)res;
	  back = 1;
	} else {
	  dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
	}
      }
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  if (NULL != endptr) { *endptr = ep; }
  return back;
}