1 /* Convert string representation of a number into an intmax_t value.
2 Copyright 1999, 2001, 2002 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
18 /* Written by Paul Eggert. */
25 # include <inttypes.h>
37 # if defined PROTOTYPES || defined __STDC__
38 # define PARAMS(Args) Args
40 # define PARAMS(Args) ()
44 /* Verify a requirement at compile-time (unlike assert, which is runtime). */
45 #define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
48 # ifndef HAVE_DECL_STRTOUL
49 "this configure-time declaration test was not run"
51 # if !HAVE_DECL_STRTOUL
52 unsigned long strtoul PARAMS ((char const *, char **, int));
54 # ifndef HAVE_DECL_STRTOULL
55 "this configure-time declaration test was not run"
57 # if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG
58 unsigned long long strtoull PARAMS ((char const *, char **, int));
63 # ifndef HAVE_DECL_STRTOL
64 "this configure-time declaration test was not run"
66 # if !HAVE_DECL_STRTOL
67 long strtol PARAMS ((char const *, char **, int));
69 # ifndef HAVE_DECL_STRTOLL
70 "this configure-time declaration test was not run"
72 # if !HAVE_DECL_STRTOLL && HAVE_UNSIGNED_LONG_LONG
73 long long strtoll PARAMS ((char const *, char **, int));
78 # undef HAVE_LONG_LONG
79 # define HAVE_LONG_LONG HAVE_UNSIGNED_LONG_LONG
80 # define INT uintmax_t
81 # define strtoimax strtoumax
82 # define strtol strtoul
83 # define strtoll strtoull
89 strtoimax (char const *ptr, char **endptr, int base)
92 verify (size_is_that_of_long_or_long_long,
93 (sizeof (INT) == sizeof (long)
94 || sizeof (INT) == sizeof (long long)));
96 if (sizeof (INT) != sizeof (long))
97 return strtoll (ptr, endptr, base);
99 verify (size_is_that_of_long,
100 sizeof (INT) == sizeof (long));
103 return strtol (ptr, endptr, base);