1 /* strtoimax - convert string representation of a number into an intmax_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/>.
21 /* Written by Paul Eggert. Modified by Chet Ramey for Bash. */
28 # include <inttypes.h>
37 /* Verify a requirement at compile-time (unlike assert, which is runtime). */
38 #define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
40 #ifndef HAVE_DECL_STRTOL
41 "this configure-time declaration test was not run"
44 extern long strtol __P((const char *, char **, int));
47 #ifndef HAVE_DECL_STRTOLL
48 "this configure-time declaration test was not run"
50 #if !HAVE_DECL_STRTOLL && HAVE_LONG_LONG
51 extern long long strtoll __P((const char *, char **, int));
59 strtoimax (ptr, endptr, base)
65 verify(size_is_that_of_long_or_long_long,
66 (sizeof (intmax_t) == sizeof (long) ||
67 sizeof (intmax_t) == sizeof (long long)));
69 if (sizeof (intmax_t) != sizeof (long))
70 return (strtoll (ptr, endptr, base));
72 verify (size_is_that_of_long, sizeof (intmax_t) == sizeof (long));
75 return (strtol (ptr, endptr, base));
90 printf ("sizeof intmax_t: %d\n", sizeof (intmax_t));
93 printf ("sizeof long long: %d\n", sizeof (long long));
95 printf ("sizeof long: %d\n", sizeof (long));
97 x = strtoimax("42", &endptr, 10);
99 y = strtoll("42", &endptr, 10);
103 z = strtol("42", &endptr, 10);
105 printf ("%lld %lld %ld\n", x, y, z);