1542bd65fSTim J. Robbins /*- 2542bd65fSTim J. Robbins * Copyright (c) 2002, 2003 Tim J. Robbins 3542bd65fSTim J. Robbins * All rights reserved. 4542bd65fSTim J. Robbins * 5*3c87aa1dSDavid Chisnall * Copyright (c) 2011 The FreeBSD Foundation 6*3c87aa1dSDavid Chisnall * All rights reserved. 7*3c87aa1dSDavid Chisnall * Portions of this software were developed by David Chisnall 8*3c87aa1dSDavid Chisnall * under sponsorship from the FreeBSD Foundation. 9*3c87aa1dSDavid Chisnall * 10542bd65fSTim J. Robbins * Redistribution and use in source and binary forms, with or without 11542bd65fSTim J. Robbins * modification, are permitted provided that the following conditions 12542bd65fSTim J. Robbins * are met: 13542bd65fSTim J. Robbins * 1. Redistributions of source code must retain the above copyright 14542bd65fSTim J. Robbins * notice, this list of conditions and the following disclaimer. 15542bd65fSTim J. Robbins * 2. Redistributions in binary form must reproduce the above copyright 16542bd65fSTim J. Robbins * notice, this list of conditions and the following disclaimer in the 17542bd65fSTim J. Robbins * documentation and/or other materials provided with the distribution. 18542bd65fSTim J. Robbins * 19542bd65fSTim J. Robbins * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20542bd65fSTim J. Robbins * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21542bd65fSTim J. Robbins * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22542bd65fSTim J. Robbins * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23542bd65fSTim J. Robbins * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24542bd65fSTim J. Robbins * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25542bd65fSTim J. Robbins * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26542bd65fSTim J. Robbins * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27542bd65fSTim J. Robbins * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28542bd65fSTim J. Robbins * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29542bd65fSTim J. Robbins * SUCH DAMAGE. 30542bd65fSTim J. Robbins */ 31542bd65fSTim J. Robbins 32542bd65fSTim J. Robbins #include <sys/cdefs.h> 33542bd65fSTim J. Robbins __FBSDID("$FreeBSD$"); 34542bd65fSTim J. Robbins 35542bd65fSTim J. Robbins #include <stdlib.h> 36542bd65fSTim J. Robbins #include <wchar.h> 37542bd65fSTim J. Robbins #include <wctype.h> 38*3c87aa1dSDavid Chisnall #include "xlocale_private.h" 39542bd65fSTim J. Robbins 40542bd65fSTim J. Robbins /* 41542bd65fSTim J. Robbins * See wcstod() for comments as to the logic used. 42542bd65fSTim J. Robbins */ 43542bd65fSTim J. Robbins long double 44*3c87aa1dSDavid Chisnall wcstold_l(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr, 45*3c87aa1dSDavid Chisnall locale_t locale) 46542bd65fSTim J. Robbins { 47dc763237STim J. Robbins static const mbstate_t initial; 48dc763237STim J. Robbins mbstate_t mbs; 49542bd65fSTim J. Robbins long double val; 5084d9142fSJacques Vidrine char *buf, *end; 51*3c87aa1dSDavid Chisnall const wchar_t *wcp = nptr; 5284d9142fSJacques Vidrine size_t len; 53*3c87aa1dSDavid Chisnall size_t spaces = 0; 54*3c87aa1dSDavid Chisnall FIX_LOCALE(locale); 55542bd65fSTim J. Robbins 56*3c87aa1dSDavid Chisnall while (iswspace_l(*wcp, locale)) { 57*3c87aa1dSDavid Chisnall wcp++; 58*3c87aa1dSDavid Chisnall spaces++; 59*3c87aa1dSDavid Chisnall } 60542bd65fSTim J. Robbins 61542bd65fSTim J. Robbins wcp = nptr; 62dc763237STim J. Robbins mbs = initial; 63*3c87aa1dSDavid Chisnall if ((len = wcsrtombs_l(NULL, &wcp, 0, &mbs, locale)) == (size_t)-1) { 64542bd65fSTim J. Robbins if (endptr != NULL) 65542bd65fSTim J. Robbins *endptr = (wchar_t *)nptr; 66542bd65fSTim J. Robbins return (0.0); 67542bd65fSTim J. Robbins } 68542bd65fSTim J. Robbins if ((buf = malloc(len + 1)) == NULL) 69542bd65fSTim J. Robbins return (0.0); 70dc763237STim J. Robbins mbs = initial; 71*3c87aa1dSDavid Chisnall wcsrtombs_l(buf, &wcp, len + 1, &mbs, locale); 72542bd65fSTim J. Robbins 73*3c87aa1dSDavid Chisnall val = strtold_l(buf, &end, locale); 74542bd65fSTim J. Robbins 75*3c87aa1dSDavid Chisnall if (endptr != NULL) { 76*3c87aa1dSDavid Chisnall /* XXX Assume each wide char is one byte. */ 77542bd65fSTim J. Robbins *endptr = (wchar_t *)nptr + (end - buf); 78*3c87aa1dSDavid Chisnall if (buf != end) 79*3c87aa1dSDavid Chisnall *endptr += spaces; 80*3c87aa1dSDavid Chisnall } 81542bd65fSTim J. Robbins 82542bd65fSTim J. Robbins free(buf); 83542bd65fSTim J. Robbins 84542bd65fSTim J. Robbins return (val); 85542bd65fSTim J. Robbins } 86*3c87aa1dSDavid Chisnall long double 87*3c87aa1dSDavid Chisnall wcstold(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr) 88*3c87aa1dSDavid Chisnall { 89*3c87aa1dSDavid Chisnall return wcstold_l(nptr, endptr, __get_locale()); 90*3c87aa1dSDavid Chisnall } 91