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%%	options

copyright owner	=	Dirk Krause
copyright year	=	2015-xxxx
license		=	bsd



%%	header

/**	@file
	Retrieve long value from
	8 bit character string in decimal notation.
*/

#ifndef DK4CONF_H_INCLUDED
#include "dk4conf.h"
#endif

#ifndef DK4TYPES_H_INCLUDED
#include "dk4types.h"
#endif

#ifndef DK4ERROR_H_INCLUDED
#include "dk4error.h"
#endif



#ifdef __cplusplus
extern "C" {
#endif

/**	Retrieve numeric value from string, decimal notation.
	@param	rp	Pointer to result variable for the found value.
	@param	src	String to check for numeric value.
	@param	endptr	Address of pointer variable.
			A pointer to the first character not processed
			is stored here.
			The function may also store a NULL pointer in this
			variable.
			The variable points to the correct error position
			only if er.ec is DK4_E_SYNTAX.
	@param	atg	Allow trailing garbage:
			0=no unprocessable trailing bytes allowed,
			1=trailing whitespaces allowed,
			2=any trailing characters allowed.
	@param	erp	Error report, may be NULL.
	@return	1 on success, 0 on error.
	
	Error codes:
	DK4_E_INVALID_ARGUMENTS	if rp or src is NULL,
	DK4_E_MATH_OVERFLOW	if the number is out of range, or
	DK4_E_SYNTAX		if src contains illegal characters.
*/
int
dk4ma_input_c8_dec_long(
  long		 *rp,
  const char	 *src,
  const char	**endptr,
  int		  atg,
  dk4_er_t	 *erp
);

#ifdef __cplusplus
}
#endif

%%	module

#include "dk4mai8ddi.h"
#include "dk4mai8dil.h"
#include "dk4numco.h"



int
dk4ma_input_c8_dec_long(
  long		 *rp,
  const char	 *src,
  const char	**endptr,
  int		  atg,
  dk4_er_t	 *erp
)
{
#if DK4_HAVE_INTMAX_T || DK4_HAVE_LONG_LONG
  dk4_im_t	res;
  int		back = 0;
  if (0 != dk4ma_input_c8_dec_dk4_im_t(&res, src, endptr, atg, erp)) {
    if (((dk4_im_t)(LONG_MIN) <= res) && (((dk4_im_t)(LONG_MAX)) >= res)) {
      *rp = (long)res;
      back = 1;
    } else {
      dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
    }
  }
  return back;
#else
  return (dk4ma_input_c8_dec_dk4_im_t(rp, src, endptr, atg, erp));
#endif
}