1 /* Convert string representation of a number into an intmax_t value.
2
3 Copyright (C) 1999, 2001-2004, 2006, 2009-2021 Free Software Foundation,
4 Inc.
5
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <https://www.gnu.org/licenses/>. */
18
19 /* Written by Paul Eggert. */
20
21 #include <config.h>
22
23 /* Verify interface. */
24 #include <inttypes.h>
25
26 #include <stdlib.h>
27
28 #include "verify.h"
29
30 #ifdef UNSIGNED
31 # ifndef HAVE_DECL_STRTOULL
32 "this configure-time declaration test was not run"
33 # endif
34 # if !HAVE_DECL_STRTOULL
35 unsigned long long int strtoull (char const *, char **, int);
36 # endif
37
38 #else
39
40 # ifndef HAVE_DECL_STRTOLL
41 "this configure-time declaration test was not run"
42 # endif
43 # if !HAVE_DECL_STRTOLL
44 long long int strtoll (char const *, char **, int);
45 # endif
46 #endif
47
48 #ifdef UNSIGNED
49 # define Int uintmax_t
50 # define Strtoimax strtoumax
51 # define Strtol strtoul
52 # define Strtoll strtoull
53 # define Unsigned unsigned
54 #else
55 # define Int intmax_t
56 # define Strtoimax strtoimax
57 # define Strtol strtol
58 # define Strtoll strtoll
59 # define Unsigned
60 #endif
61
62 Int
Strtoimax(char const * ptr,char ** endptr,int base)63 Strtoimax (char const *ptr, char **endptr, int base)
64 {
65 verify (sizeof (Int) == sizeof (Unsigned long int)
66 || sizeof (Int) == sizeof (Unsigned long long int));
67
68 if (sizeof (Int) != sizeof (Unsigned long int))
69 return Strtoll (ptr, endptr, base);
70
71 return Strtol (ptr, endptr, base);
72 }
73