diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:38:56 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:38:56 +0000 |
commit | 6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321 (patch) | |
tree | f63ce19d57fad3ac4a15bc26dbfbfa2b834111b5 /lib/sh/strtoumax.c | |
parent | Initial commit. (diff) | |
download | bash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.tar.xz bash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.zip |
Adding upstream version 5.2.15.upstream/5.2.15upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/sh/strtoumax.c')
-rw-r--r-- | lib/sh/strtoumax.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/lib/sh/strtoumax.c b/lib/sh/strtoumax.c new file mode 100644 index 0000000..2e26efc --- /dev/null +++ b/lib/sh/strtoumax.c @@ -0,0 +1,113 @@ +/* strtoumax - convert string representation of a number into an uintmax_t value. */ + +/* Copyright 1999-2020 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + Bash is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Bash. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* Written by Paul Eggert. Modified by Chet Ramey for Bash. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#if HAVE_INTTYPES_H +# include <inttypes.h> +#endif + +#if HAVE_STDINT_H +# include <stdint.h> +#endif + +#if HAVE_STDLIB_H +# include <stdlib.h> +#endif + +#include <stdc.h> + +/* Verify a requirement at compile-time (unlike assert, which is runtime). */ +#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; } + +#ifndef HAVE_DECL_STRTOUL +"this configure-time declaration test was not run" +#endif +#if !HAVE_DECL_STRTOUL +extern unsigned long strtoul PARAMS((const char *, char **, int)); +#endif + +#ifndef HAVE_DECL_STRTOULL +"this configure-time declaration test was not run" +#endif +#if !HAVE_DECL_STRTOULL && HAVE_UNSIGNED_LONG_LONG_INT +extern unsigned long long strtoull PARAMS((const char *, char **, int)); +#endif + +#ifdef strtoumax +#undef strtoumax +#endif + +uintmax_t +strtoumax (ptr, endptr, base) + const char *ptr; + char **endptr; + int base; +{ +#if HAVE_UNSIGNED_LONG_LONG_INT + verify (size_is_that_of_unsigned_long_or_unsigned_long_long, + (sizeof (uintmax_t) == sizeof (unsigned long) || + sizeof (uintmax_t) == sizeof (unsigned long long))); + + if (sizeof (uintmax_t) != sizeof (unsigned long)) + return (strtoull (ptr, endptr, base)); +#else + verify (size_is_that_of_unsigned_long, sizeof (uintmax_t) == sizeof (unsigned long)); +#endif + + return (strtoul (ptr, endptr, base)); +} + +#ifdef TESTING +# include <stdio.h> +int +main () +{ + char *p, *endptr; + uintmax_t x; +#if HAVE_UNSIGNED_LONG_LONG_INT + unsigned long long y; +#endif + unsigned long z; + + printf ("sizeof uintmax_t: %d\n", sizeof (uintmax_t)); + +#if HAVE_UNSIGNED_LONG_LONG_INT + printf ("sizeof unsigned long long: %d\n", sizeof (unsigned long long)); +#endif + printf ("sizeof unsigned long: %d\n", sizeof (unsigned long)); + + x = strtoumax("42", &endptr, 10); +#if HAVE_LONG_LONG_INT + y = strtoull("42", &endptr, 10); +#else + y = 0; +#endif + z = strtoul("42", &endptr, 10); + + printf ("%llu %llu %lu\n", x, y, z); + + exit (0); +} +#endif |