/*	$NetBSD: _strtoi.h,v 1.2 2015/01/18 17:55:22 christos Exp $	*/

/*-
 * Copyright (c) 1990, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * Original version ID:
 * NetBSD: src/lib/libc/locale/_wcstoul.h,v 1.2 2003/08/07 16:43:03 agc Exp
 *
 * Created by Kamil Rytarowski, based on ID:
 * NetBSD: src/common/lib/libc/stdlib/_strtoul.h,v 1.7 2013/05/17 12:55:56 joerg
 *Exp
 */

/*
 * function template for strtoi and strtou
 *
 * parameters:
 *	_FUNCNAME    : function name
 *      __TYPE       : return and range limits type
 *      __WRAPPED    : wrapped function, strtoimax or strtoumax
 */

#define __WRAPPED_L_(x) x##_l
#define __WRAPPED_L__(x) __WRAPPED_L_(x)
#define __WRAPPED_L __WRAPPED_L__(__WRAPPED)

#if defined(_KERNEL) || defined(_STANDALONE) ||                                \
  defined(HAVE_NBTOOL_CONFIG_H) || defined(BCS_ONLY)
__TYPE
_FUNCNAME(const char *__restrict nptr, char **__restrict endptr, int base,
          __TYPE lo, __TYPE hi, int *rstatus)
#else
#include <locale.h>
#include "setlocale_local.h"
#define INT_FUNCNAME_(pre, name, post) pre##name##post
#define INT_FUNCNAME(pre, name, post) INT_FUNCNAME_(pre, name, post)

static __TYPE INT_FUNCNAME(_int_, _FUNCNAME, _l)(const char *__restrict nptr,
                                                 char **__restrict endptr,
                                                 int base, __TYPE lo, __TYPE hi,
                                                 int *rstatus, locale_t loc)
#endif
{
#if !defined(_KERNEL) && !defined(_STANDALONE)
  int serrno;
#endif
  __TYPE im;
  char *ep;
  int rep;

  _DIAGASSERT(hi >= lo);

  _DIAGASSERT(nptr != NULL);
  /* endptr may be NULL */

  if (endptr == NULL)
    endptr = &ep;

  if (rstatus == NULL)
    rstatus = &rep;

#if !defined(_KERNEL) && !defined(_STANDALONE)
  serrno = errno;
  errno = 0;
#endif

#if defined(_KERNEL) || defined(_STANDALONE) ||                                \
  defined(HAVE_NBTOOL_CONFIG_H) || defined(BCS_ONLY)
  im = __WRAPPED(nptr, endptr, base);
#else
  im = __WRAPPED_L(nptr, endptr, base, loc);
#endif

#if !defined(_KERNEL) && !defined(_STANDALONE)
  *rstatus = errno;
  errno = serrno;
#endif

  if (*rstatus == 0) {
    /* No digits were found */
    if (nptr == *endptr)
      *rstatus = ECANCELED;
    /* There are further characters after number */
    else if (**endptr != '\0')
      *rstatus = ENOTSUP;
  }

  if (im < lo) {
    if (*rstatus == 0)
      *rstatus = ERANGE;
    return lo;
  }
  if (im > hi) {
    if (*rstatus == 0)
      *rstatus = ERANGE;
    return hi;
  }

  return im;
}

#if !defined(_KERNEL) && !defined(_STANDALONE) &&                              \
  !defined(HAVE_NBTOOL_CONFIG_H) && !defined(BCS_ONLY)
__TYPE
_FUNCNAME(const char *__restrict nptr, char **__restrict endptr, int base,
          __TYPE lo, __TYPE hi, int *rstatus) {
  return INT_FUNCNAME(_int_, _FUNCNAME, _l)(nptr, endptr, base, lo, hi, rstatus,
                                            _current_locale());
}

__TYPE
INT_FUNCNAME(, _FUNCNAME, _l)
(const char *__restrict nptr, char **__restrict endptr, int base, __TYPE lo,
 __TYPE hi, int *rstatus, locale_t loc) {
  return INT_FUNCNAME(_int_, _FUNCNAME, _l)(nptr, endptr, base, lo, hi, rstatus,
                                            loc);
}
#endif
