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Diffstat (limited to 'gmp-6.3.0/tests/mpz/io.c')
| -rw-r--r-- | gmp-6.3.0/tests/mpz/io.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/gmp-6.3.0/tests/mpz/io.c b/gmp-6.3.0/tests/mpz/io.c new file mode 100644 index 0000000..3522e9d --- /dev/null +++ b/gmp-6.3.0/tests/mpz/io.c @@ -0,0 +1,151 @@ +/* Test conversion and I/O using mpz_out_str and mpz_inp_str. + +Copyright 1993, 1994, 1996, 2000, 2001, 2012, 2020 Free Software +Foundation, Inc. + +This file is part of the GNU MP Library test suite. + +The GNU MP Library test suite 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. + +The GNU MP Library test suite 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 +the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */ + +#include "config.h" + +#include <stdio.h> +#include <stdlib.h> +#if HAVE_UNISTD_H +#include <unistd.h> /* for unlink */ +#endif + +#include "gmp-impl.h" +#include "tests.h" + +#define FILENAME "io.tmp" + +void +debug_mp (mpz_t x, int base) +{ + mpz_out_str (stdout, base, x); fputc ('\n', stdout); +} + +int +main (int argc, char **argv) +{ + mpz_t op1, op2; + mp_size_t size; + int i; + int reps = 10000; + FILE *fp; + int base, base_out; + gmp_randstate_ptr rands; + mpz_t bs; + unsigned long bsi, size_range; + size_t nread; + + tests_start (); + rands = RANDS; + + mpz_init (bs); + + if (argc == 2) + reps = atoi (argv[1]); + + mpz_init (op1); + mpz_init (op2); + + fp = fopen (FILENAME, "w+"); + + if (mpz_out_str (fp, 63, op1) != 0) + { + printf ("mpz_out_str did not return 0 (error) with base > 62\n"); + abort (); + } + + if (mpz_out_str (fp, -37, op1) != 0) + { + printf ("mpz_out_str did not return 0 (error) with base < -37\n"); + abort (); + } + + for (i = 0; i < reps; i++) + { + mpz_urandomb (bs, rands, 32); + size_range = mpz_get_ui (bs) % 10 + 2; + + mpz_urandomb (bs, rands, size_range); + size = mpz_get_ui (bs); + mpz_rrandomb (op1, rands, size); + mpz_urandomb (bs, rands, 1); + bsi = mpz_get_ui (bs); + if ((bsi & 1) != 0) + mpz_neg (op1, op1); + + mpz_urandomb (bs, rands, 16); + bsi = mpz_get_ui (bs); + base = bsi % 62 + 1; + if (base == 1) + base = 0; + + if (i % 2 == 0 && base <= 36) + base_out = -base; + else + base_out = base; + + rewind (fp); + if (mpz_out_str (fp, base_out, op1) == 0 + || putc (' ', fp) == EOF + || fflush (fp) != 0) + { + printf ("mpz_out_str write error\n"); + abort (); + } + + rewind (fp); + nread = mpz_inp_str (op2, fp, base); + if (nread == 0) + { + if (ferror (fp)) + printf ("mpz_inp_str stream read error\n"); + else + printf ("mpz_inp_str data conversion error\n"); + abort (); + } + + if (nread != ftell(fp)) + { + printf ("mpz_inp_str nread doesn't match ftell\n"); + printf (" nread %lu\n", (unsigned long) nread); + printf (" ftell %ld\n", ftell(fp)); + abort (); + } + + if (mpz_cmp (op1, op2)) + { + printf ("ERROR\n"); + printf ("op1 = "); debug_mp (op1, -16); + printf ("op2 = "); debug_mp (op2, -16); + printf ("base = %d\n", base); + abort (); + } + } + + fclose (fp); + + unlink (FILENAME); + + mpz_clear (bs); + mpz_clear (op1); + mpz_clear (op2); + + tests_end (); + exit (0); +} |