t-inp_str.c
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上传日期:2022-08-06
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- /* Test mpz_inp_str.
- Copyright 2001, 2002 Free Software Foundation, Inc.
- This file is part of the GNU MP Library.
- The GNU MP 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 3 of the License, or (at your
- option) any later version.
- The GNU MP 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 the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
- #include "config.h"
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #if HAVE_UNISTD_H
- #include <unistd.h> /* for unlink */
- #endif
- #include "gmp.h"
- #include "gmp-impl.h"
- #include "tests.h"
- #define FILENAME "t-inp_str.tmp"
- void
- check_data (void)
- {
- static const struct {
- const char *inp;
- int base;
- const char *want;
- int want_nread;
- } data[] = {
- { "0", 10, "0", 1 },
- { "abc", 10, "0", 0 },
- { "ghi", 16, "0", 0 },
- { "ff", 16, "255", 2 },
- { "-ff", 16, "-255", 3 },
- { "FF", 16, "255", 2 },
- { "-FF", 16, "-255", 3 },
- { "z", 36, "35", 1 },
- { "Z", 36, "35", 1 },
- { "0x0", 0, "0", 3 },
- { "0x10", 0, "16", 4 },
- { "-0x0", 0, "0", 4 },
- { "-0x10", 0, "-16", 5 },
- { "00", 0, "0", 2 },
- { "010", 0, "8", 3 },
- { "-00", 0, "0", 3 },
- { "-010", 0, "-8", 4 },
- { "0x", 0, "0", 2 },
- { "0", 0, "0", 1 },
- };
- mpz_t got, want;
- long ftell_nread;
- int i, pre, post, j, got_nread, want_nread;
- FILE *fp;
- mpz_init (got);
- mpz_init (want);
- for (i = 0; i < numberof (data); i++)
- {
- for (pre = 0; pre <= 3; pre++)
- {
- for (post = 0; post <= 2; post++)
- {
- mpz_set_str_or_abort (want, data[i].want, 0);
- MPZ_CHECK_FORMAT (want);
- /* create the file new each time to ensure its length is what
- we want */
- fp = fopen (FILENAME, "w+");
- ASSERT_ALWAYS (fp != NULL);
- for (j = 0; j < pre; j++)
- putc (' ', fp);
- fputs (data[i].inp, fp);
- for (j = 0; j < post; j++)
- putc (' ', fp);
- fflush (fp);
- ASSERT_ALWAYS (! ferror(fp));
- rewind (fp);
- got_nread = mpz_inp_str (got, fp, data[i].base);
- if (got_nread != 0)
- {
- ftell_nread = ftell (fp);
- if (got_nread != ftell_nread)
- {
- printf ("mpz_inp_str nread wrongn");
- printf (" inp "%s"n", data[i].inp);
- printf (" base %dn", data[i].base);
- printf (" pre %dn", pre);
- printf (" post %dn", post);
- printf (" got_nread %dn", got_nread);
- printf (" ftell_nread %ldn", ftell_nread);
- abort ();
- }
- }
- /* if data[i].inp is a whole string to read and there's no post
- whitespace then expect to have EOF */
- if (post == 0 && data[i].want_nread == strlen(data[i].inp))
- {
- int c = getc(fp);
- if (c != EOF)
- {
- printf ("mpz_inp_str didn't read to EOFn");
- printf (" inp "%s"n", data[i].inp);
- printf (" base %dn", data[i].base);
- printf (" pre %dn", pre);
- printf (" post %dn", post);
- printf (" c '%c' %#xn", c, c);
- abort ();
- }
- }
- /* only expect "pre" included in the count when non-zero */
- want_nread = data[i].want_nread;
- if (want_nread != 0)
- want_nread += pre;
- if (got_nread != want_nread)
- {
- printf ("mpz_inp_str nread wrongn");
- printf (" inp "%s"n", data[i].inp);
- printf (" base %dn", data[i].base);
- printf (" pre %dn", pre);
- printf (" post %dn", post);
- printf (" got_nread %dn", got_nread);
- printf (" want_nread %dn", want_nread);
- abort ();
- }
- MPZ_CHECK_FORMAT (got);
- if (mpz_cmp (got, want) != 0)
- {
- printf ("mpz_inp_str wrong resultn");
- printf (" inp "%s"n", data[i].inp);
- printf (" base %dn", data[i].base);
- mpz_trace (" got ", got);
- mpz_trace (" want", want);
- abort ();
- }
- ASSERT_ALWAYS (fclose (fp) == 0);
- }
- }
- }
- mpz_clear (got);
- mpz_clear (want);
- }
- int
- main (void)
- {
- tests_start ();
- check_data ();
- unlink (FILENAME);
- tests_end ();
- exit (0);
- }