1542bd65fSTim J. Robbins /*- 2*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 3d915a14eSPedro F. Giffuni * 4542bd65fSTim J. Robbins * Copyright (c) 2002, 2003 Tim J. Robbins 5542bd65fSTim J. Robbins * All rights reserved. 6542bd65fSTim J. Robbins * 73c87aa1dSDavid Chisnall * Copyright (c) 2011 The FreeBSD Foundation 85b5fa75aSEd Maste * 93c87aa1dSDavid Chisnall * Portions of this software were developed by David Chisnall 103c87aa1dSDavid Chisnall * under sponsorship from the FreeBSD Foundation. 113c87aa1dSDavid Chisnall * 12542bd65fSTim J. Robbins * Redistribution and use in source and binary forms, with or without 13542bd65fSTim J. Robbins * modification, are permitted provided that the following conditions 14542bd65fSTim J. Robbins * are met: 15542bd65fSTim J. Robbins * 1. Redistributions of source code must retain the above copyright 16542bd65fSTim J. Robbins * notice, this list of conditions and the following disclaimer. 17542bd65fSTim J. Robbins * 2. Redistributions in binary form must reproduce the above copyright 18542bd65fSTim J. Robbins * notice, this list of conditions and the following disclaimer in the 19542bd65fSTim J. Robbins * documentation and/or other materials provided with the distribution. 20542bd65fSTim J. Robbins * 21542bd65fSTim J. Robbins * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22542bd65fSTim J. Robbins * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23542bd65fSTim J. Robbins * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24542bd65fSTim J. Robbins * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25542bd65fSTim J. Robbins * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26542bd65fSTim J. Robbins * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27542bd65fSTim J. Robbins * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28542bd65fSTim J. Robbins * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29542bd65fSTim J. Robbins * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30542bd65fSTim J. Robbins * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31542bd65fSTim J. Robbins * SUCH DAMAGE. 32542bd65fSTim J. Robbins */ 33542bd65fSTim J. Robbins 34542bd65fSTim J. Robbins #include <sys/cdefs.h> 35542bd65fSTim J. Robbins __FBSDID("$FreeBSD$"); 36542bd65fSTim J. Robbins 37542bd65fSTim J. Robbins #include <stdlib.h> 38542bd65fSTim J. Robbins #include <wchar.h> 39542bd65fSTim J. Robbins #include <wctype.h> 403c87aa1dSDavid Chisnall #include "xlocale_private.h" 41542bd65fSTim J. Robbins 42542bd65fSTim J. Robbins /* 43542bd65fSTim J. Robbins * See wcstod() for comments as to the logic used. 44542bd65fSTim J. Robbins */ 45542bd65fSTim J. Robbins float 463c87aa1dSDavid Chisnall wcstof_l(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr, 473c87aa1dSDavid Chisnall locale_t locale) 48542bd65fSTim J. Robbins { 49dc763237STim J. Robbins static const mbstate_t initial; 50dc763237STim J. Robbins mbstate_t mbs; 51542bd65fSTim J. Robbins float val; 521e8742e9STim J. Robbins char *buf, *end; 53542bd65fSTim J. Robbins const wchar_t *wcp; 541e8742e9STim J. Robbins size_t len; 5581f91de9SEric van Gyzen size_t spaces; 563c87aa1dSDavid Chisnall FIX_LOCALE(locale); 57542bd65fSTim J. Robbins 58542bd65fSTim J. Robbins wcp = nptr; 5981f91de9SEric van Gyzen spaces = 0; 6081f91de9SEric van Gyzen while (iswspace_l(*wcp, locale)) { 6181f91de9SEric van Gyzen wcp++; 6281f91de9SEric van Gyzen spaces++; 6381f91de9SEric van Gyzen } 6481f91de9SEric van Gyzen 65dc763237STim J. Robbins mbs = initial; 663c87aa1dSDavid Chisnall if ((len = wcsrtombs_l(NULL, &wcp, 0, &mbs, locale)) == (size_t)-1) { 67542bd65fSTim J. Robbins if (endptr != NULL) 68542bd65fSTim J. Robbins *endptr = (wchar_t *)nptr; 69542bd65fSTim J. Robbins return (0.0); 70542bd65fSTim J. Robbins } 7181f91de9SEric van Gyzen if ((buf = malloc(len + 1)) == NULL) { 7281f91de9SEric van Gyzen if (endptr != NULL) 7381f91de9SEric van Gyzen *endptr = (wchar_t *)nptr; 74542bd65fSTim J. Robbins return (0.0); 7581f91de9SEric van Gyzen } 76dc763237STim J. Robbins mbs = initial; 773c87aa1dSDavid Chisnall wcsrtombs_l(buf, &wcp, len + 1, &mbs, locale); 78542bd65fSTim J. Robbins 793c87aa1dSDavid Chisnall val = strtof_l(buf, &end, locale); 80542bd65fSTim J. Robbins 8181f91de9SEric van Gyzen if (endptr != NULL) { 82542bd65fSTim J. Robbins *endptr = (wchar_t *)nptr + (end - buf); 8381f91de9SEric van Gyzen if (buf != end) 8481f91de9SEric van Gyzen *endptr += spaces; 8581f91de9SEric van Gyzen } 86542bd65fSTim J. Robbins 87542bd65fSTim J. Robbins free(buf); 88542bd65fSTim J. Robbins 89542bd65fSTim J. Robbins return (val); 90542bd65fSTim J. Robbins } 913c87aa1dSDavid Chisnall float 923c87aa1dSDavid Chisnall wcstof(const wchar_t * __restrict nptr, wchar_t ** __restrict endptr) 933c87aa1dSDavid Chisnall { 943c87aa1dSDavid Chisnall return wcstof_l(nptr, endptr, __get_locale()); 953c87aa1dSDavid Chisnall } 96