1 /* $NetBSD: _strtoi.h,v 1.1 2015/01/22 02:15:59 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * Original version ID: 32 * NetBSD: src/lib/libc/locale/_wcstoul.h,v 1.2 2003/08/07 16:43:03 agc Exp 33 * 34 * Created by Kamil Rytarowski, based on ID: 35 * NetBSD: src/common/lib/libc/stdlib/_strtoul.h,v 1.7 2013/05/17 12:55:56 joerg Exp 36 */ 37 38 /* 39 * function template for strtoi and strtou 40 * 41 * parameters: 42 * _FUNCNAME : function name 43 * __TYPE : return and range limits type 44 * __WRAPPED : wrapped function, strtoimax or strtoumax 45 */ 46 47 __TYPE 48 _FUNCNAME(const char * __restrict nptr, char ** __restrict endptr, int base, 49 __TYPE lo, __TYPE hi, int * rstatus) 50 { 51 int serrno; 52 __TYPE im; 53 char *ep; 54 int rep; 55 56 /* endptr may be NULL */ 57 58 if (endptr == NULL) 59 endptr = &ep; 60 61 if (rstatus == NULL) 62 rstatus = &rep; 63 64 serrno = errno; 65 errno = 0; 66 67 im = __WRAPPED(nptr, endptr, base); 68 69 *rstatus = errno; 70 errno = serrno; 71 72 if (*rstatus == 0) { 73 /* No digits were found */ 74 if (nptr == *endptr) 75 *rstatus = ECANCELED; 76 /* There are further characters after number */ 77 else if (**endptr != '\0') 78 *rstatus = ENOTSUP; 79 } 80 81 if (im < lo) { 82 if (*rstatus == 0) 83 *rstatus = ERANGE; 84 return lo; 85 } 86 if (im > hi) { 87 if (*rstatus == 0) 88 *rstatus = ERANGE; 89 return hi; 90 } 91 92 return im; 93 } 94