1 /* strtoumax - convert string representation of a number into an uintmax_t value. */
3 /* Copyright 1999-2005 Free Software Foundation, Inc.
5 This file is part of GNU Bash, the Bourne Again SHell.
7 Bash is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 Bash is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with Bash. If not, see <http://www.gnu.org/licenses/>.
20 /* Written by Paul Eggert. Modified by Chet Ramey for Bash. */
27 # include <inttypes.h>
36 /* Verify a requirement at compile-time (unlike assert, which is runtime). */
37 #define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
39 #ifndef HAVE_DECL_STRTOUL
40 "this configure-time declaration test was not run"
42 #if !HAVE_DECL_STRTOUL
43 extern unsigned long strtoul __P((const char *, char **, int));
46 #ifndef HAVE_DECL_STRTOULL
47 "this configure-time declaration test was not run"
49 #if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG
50 extern unsigned long long strtoull __P((const char *, char **, int));
58 strtoumax (ptr, endptr, base)
63 #if HAVE_UNSIGNED_LONG_LONG
64 verify (size_is_that_of_unsigned_long_or_unsigned_long_long,
65 (sizeof (uintmax_t) == sizeof (unsigned long) ||
66 sizeof (uintmax_t) == sizeof (unsigned long long)));
68 if (sizeof (uintmax_t) != sizeof (unsigned long))
69 return (strtoull (ptr, endptr, base));
71 verify (size_is_that_of_unsigned_long, sizeof (uintmax_t) == sizeof (unsigned long));
74 return (strtoul (ptr, endptr, base));
84 #if HAVE_UNSIGNED_LONG_LONG
89 printf ("sizeof uintmax_t: %d\n", sizeof (uintmax_t));
91 #if HAVE_UNSIGNED_LONG_LONG
92 printf ("sizeof unsigned long long: %d\n", sizeof (unsigned long long));
94 printf ("sizeof unsigned long: %d\n", sizeof (unsigned long));
96 x = strtoumax("42", &endptr, 10);
98 y = strtoull("42", &endptr, 10);
102 z = strtoul("42", &endptr, 10);
104 printf ("%llu %llu %lu\n", x, y, z);