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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
SPDX-License-Identifier:	BSD-3-Clause



%%	module

#include "dk4conf.h"
#include "dk4opt.h"
#include "dk4strd.h"
#include "dk4mem.h"
#include "dk4maiddsz.h"

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


$!trace-include



int
dk4opt_get_size(size_t *dptr, dk4_option_t const *optptr, dk4_er_t *erp)
{
  size_t	 val	= 0;
  int		 back	= 0;
  int		 res	= 0;
#if	DK4_USE_ASSERT
	assert(NULL != dptr);
	assert(NULL != optptr);
#endif
  if ((NULL != dptr) && (NULL != optptr)) {
    if (0 != optptr->found) {
      switch ((optptr->spec).argtype) {
        case DK4_OPT_ARG_BOOL: {
	  if (0 != (optptr->val).b) {
	    *dptr = 1;
	  } else {
	    *dptr = 0;
	  }
	  back = 1;
	} break;
	case DK4_OPT_ARG_SIZE: {
	  *dptr = (optptr->val).s;
	  back = 1;
	} break;
	case DK4_OPT_ARG_INT: {
	  if (0 > (optptr->val).i) {
	    dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
	  } else {
	    if ((dk4_um_t)SIZE_MAX < (dk4_um_t)((optptr->val).i)) {
	      *dptr = (size_t)((optptr->val).i);
	      back = 1;
	    } else {
	      dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
	    }
	  }
	} break;
	case DK4_OPT_ARG_UNSIGNED: {
	  if ((dk4_um_t)SIZE_MAX >= (optptr->val).u) {
	    *dptr = (size_t)((optptr->val).u);
	    back = 1;
	  } else {
	    dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
	  }
	} break;
	case DK4_OPT_ARG_STRING: {
	  if (NULL != (optptr->val).t) {
	    res = dk4ma_input_dk_dec_size_t(
	      &val, (optptr->val).t, NULL, 1, erp
	    );
	    if (0 != res) {
	      *dptr = val;
	      back = 1;
	    }
	  } else {
	    dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
	  }
	} break;
	default: {
	  dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
	} break;
      }
    } else {
      dk4error_set_simple_error_code(erp, DK4_E_NOT_FOUND);
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}