1 /* Convert string representation of a number into an intmax_t value.
2 Copyright (C) 1999, 2001, 2002, 2003 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>
32 /* Verify a requirement at compile-time (unlike assert, which is runtime). */
33 #define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
36 # ifndef HAVE_DECL_STRTOULL
37 "this configure-time declaration test was not run"
39 # if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG
40 unsigned long long strtoull (char const *, char **, int);
45 # ifndef HAVE_DECL_STRTOLL
46 "this configure-time declaration test was not run"
48 # if !HAVE_DECL_STRTOLL && HAVE_UNSIGNED_LONG_LONG
49 long long strtoll (char const *, char **, int);
54 # undef HAVE_LONG_LONG
55 # define HAVE_LONG_LONG HAVE_UNSIGNED_LONG_LONG
56 # define INT uintmax_t
57 # define strtoimax strtoumax
58 # define strtol strtoul
59 # define strtoll strtoull
65 strtoimax (char const *ptr, char **endptr, int base)
68 verify (size_is_that_of_long_or_long_long,
69 (sizeof (INT) == sizeof (long)
70 || sizeof (INT) == sizeof (long long)));
72 if (sizeof (INT) != sizeof (long))
73 return strtoll (ptr, endptr, base);
75 verify (size_is_that_of_long,
76 sizeof (INT) == sizeof (long));
79 return strtol (ptr, endptr, base);