1 /* A more useful interface to strtol. 2 3 Copyright (C) 1995-1996, 1998-1999, 2001-2004, 2006-2011 Free Software 4 Foundation, Inc. 5 6 This program is free software: you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 18 19 #ifndef XSTRTOL_H_ 20 # define XSTRTOL_H_ 1 21 22 # include <getopt.h> 23 # include <inttypes.h> 24 25 # ifndef _STRTOL_ERROR 26 enum strtol_error 27 { 28 LONGINT_OK = 0, 29 30 /* These two values can be ORed together, to indicate that both 31 errors occurred. */ 32 LONGINT_OVERFLOW = 1, 33 LONGINT_INVALID_SUFFIX_CHAR = 2, 34 35 LONGINT_INVALID_SUFFIX_CHAR_WITH_OVERFLOW = (LONGINT_INVALID_SUFFIX_CHAR 36 | LONGINT_OVERFLOW), 37 LONGINT_INVALID = 4 38 }; 39 typedef enum strtol_error strtol_error; 40 # endif 41 42 # define _DECLARE_XSTRTOL(name, type) \ 43 strtol_error name (const char *, char **, int, type *, const char *); 44 _DECLARE_XSTRTOL (xstrtol, long int) 45 _DECLARE_XSTRTOL (xstrtoul, unsigned long int) 46 _DECLARE_XSTRTOL (xstrtoimax, intmax_t) 47 _DECLARE_XSTRTOL (xstrtoumax, uintmax_t) 48 49 #if HAVE_LONG_LONG_INT 50 _DECLARE_XSTRTOL (xstrtoll, long long int) 51 _DECLARE_XSTRTOL (xstrtoull, unsigned long long int) 52 #endif 53 54 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8) 55 # define _GL_ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) 56 #else 57 # define _GL_ATTRIBUTE_NORETURN /* empty */ 58 #endif 59 60 /* Report an error for an invalid integer in an option argument. 61 62 ERR is the error code returned by one of the xstrto* functions. 63 64 Use OPT_IDX to decide whether to print the short option string "C" 65 or "-C" or a long option string derived from LONG_OPTION. OPT_IDX 66 is -2 if the short option "C" was used, without any leading "-"; it 67 is -1 if the short option "-C" was used; otherwise it is an index 68 into LONG_OPTIONS, which should have a name preceded by two '-' 69 characters. 70 71 ARG is the option-argument containing the integer. 72 73 After reporting an error, exit with a failure status. */ 74 75 void xstrtol_fatal (enum strtol_error, 76 int, char, struct option const *, 77 char const *) _GL_ATTRIBUTE_NORETURN; 78 79 #endif /* not XSTRTOL_H_ */ 80