1 /* strtoumax - convert string representation of a number into an uintmax_t value. */
3 /* Copyright 1999-2009 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/>.
21 /* Written by Paul Eggert. Modified by Chet Ramey for Bash. */
28 # include <inttypes.h>
41 /* Verify a requirement at compile-time (unlike assert, which is runtime). */
42 #define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
44 #ifndef HAVE_DECL_STRTOUL
45 "this configure-time declaration test was not run"
47 #if !HAVE_DECL_STRTOUL
48 extern unsigned long strtoul __P((const char *, char **, int));
51 #ifndef HAVE_DECL_STRTOULL
52 "this configure-time declaration test was not run"
54 #if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG
55 extern unsigned long long strtoull __P((const char *, char **, int));
63 strtoumax (ptr, endptr, base)
68 #if HAVE_UNSIGNED_LONG_LONG
69 verify (size_is_that_of_unsigned_long_or_unsigned_long_long,
70 (sizeof (uintmax_t) == sizeof (unsigned long) ||
71 sizeof (uintmax_t) == sizeof (unsigned long long)));
73 if (sizeof (uintmax_t) != sizeof (unsigned long))
74 return (strtoull (ptr, endptr, base));
76 verify (size_is_that_of_unsigned_long, sizeof (uintmax_t) == sizeof (unsigned long));
79 return (strtoul (ptr, endptr, base));
89 #if HAVE_UNSIGNED_LONG_LONG
94 printf ("sizeof uintmax_t: %d\n", sizeof (uintmax_t));
96 #if HAVE_UNSIGNED_LONG_LONG
97 printf ("sizeof unsigned long long: %d\n", sizeof (unsigned long long));
99 printf ("sizeof unsigned long: %d\n", sizeof (unsigned long));
101 x = strtoumax("42", &endptr, 10);
103 y = strtoull("42", &endptr, 10);
107 z = strtoul("42", &endptr, 10);
109 printf ("%llu %llu %lu\n", x, y, z);