gdtoa/machdep_ldisdd-fbsd.c

   1 /*-
   2  * Copyright (c) 2003 David Schultz <das@FreeBSD.ORG>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 /*
  28  * Machine-dependent glue to integrate David Gay's gdtoa
  29  * package into libc for architectures where a long double
  30  * is a head/tail pair of doubles
  31  */
  32
  33 #include <sys/cdefs.h>
  34
  35 #include "xlocale_private.h"
  36
  37 #include "gdtoaimp.h"
  38
  39 long double
  40 strtold(const char * __restrict s, char ** __restrict sp)
  41 {
  42 #ifdef LDBL_COMPAT
  43         return (long double)strtod_l(s, sp, __current_locale());
  44 #else /* LDBL_COMPAT */
  45         long double result;
  46
  47         strtopdd(s, sp, (double *)&result, __current_locale());
  48         return result;
  49 #endif /* LDBL_COMPAT */
  50 }
  51
  52 long double
  53 strtold_l(const char * __restrict s, char ** __restrict sp, locale_t loc)
  54 {
  55 #ifdef LDBL_COMPAT
  56         NORMALIZE_LOCALE(loc);
  57         return (long double)strtod_l(s, sp, loc);
  58 #else /* LDBL_COMPAT */
  59         long double result;
  60
  61         NORMALIZE_LOCALE(loc);
  62         strtopdd(s, sp, (double *)&result, loc);
  63         return result;
  64 #endif /* LDBL_COMPAT */
  65 }