Attachment 1471601 Details for Bug 1609876 – test case

test case

tc.c (text/x-csrc), 2.49 KB, created by Alex Scheel on 2018-07-30 17:27:31 UTC

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Creator: Alex Scheel

Created: 2018-07-30 17:27:31 UTC

Size: 2.49 KB

patch

obsolete

>/*
> * Copyright 2009 Red Hat Inc., Durham, North Carolina.
> * All Rights Reserved.
> *
> * This library is free software; you can redistribute it and/or
> * modify it under the terms of the GNU Lesser General Public
> * License as published by the Free Software Foundation; either
> * version 2.1 of the License, or (at your option) any later version.
> *
> * This library 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
> * Lesser General Public License for more details.
> *
> * You should have received a copy of the GNU Lesser General Public
> * License along with this library; if not, write to the Free Software
> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
> *
> * Authors:
> *      "Daniel Kopecek" <dkopecek@redhat.com>
> */
>
>#ifdef HAVE_CONFIG_H
>#include <config.h>
>#endif
>
>#include <string.h>
>#include <stdlib.h>
>#include <errno.h>
>#include <stdint.h>
>#include <inttypes.h>
>#include <unistd.h>
>#include <stdio.h>
>
>int64_t strto_int64_dec (const char *str, size_t len, char **endptr)
>{
>        int64_t n;
>        int8_t  p;
>        char   *s;
>
>        errno = 0;
>        n = 0;
>        p = 1;
>        s = (char *)str;
>
>        while (len > 0) {
>                switch (*s) {
>                case '-': p = -1; ++s; --len;
>                        break;
>                case '+': p =  1; ++s; --len;
>                        break;
>                case ' ': ++s; --len;
>                        continue;
>                }
>
>                break;
>        }
>
>        while (len > 0) {
>                if (*s < '0' || *s > '9')
>                        break;
>
>                n *= 10;
>
>                if (n < 0) {
>                        errno = ERANGE;
>                        return (p == 1 ? INT64_MAX : INT64_MIN);
>                }
>
>                n += *s - '0';
>                --len;
>                ++s;
>        }
>
>        n *= p;
>
>        if (len != 0) {
>                if (s == str)
>                        errno = EINVAL;
>                if (endptr != NULL)
>                        *endptr = s;
>        } else if (n * p < 0 && !(n == INT64_MIN && s[-1] == '8')) {
>                errno = ERANGE;
>                return (p == 1 ? INT64_MAX : INT64_MIN);
>        }
>
>        return (n);
>}
>
>int main() {
>    int64_t x = strto_int64_dec("-9223372036854775808", 20, NULL);
>    int ecpy = errno;
>
>    printf("errno: %d\n", ecpy);
>    printf("out: %" PRId64 "\n", x);
>
>    return 0;
>}

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Attachments on bug 1609876: 1471601