X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=gmp%2Ftests%2Fmpz%2Ft-nextprime.c;fp=gmp%2Ftests%2Fmpz%2Ft-nextprime.c;h=1734f6149678984ef00f67615b78aaac10b7204f;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gmp/tests/mpz/t-nextprime.c b/gmp/tests/mpz/t-nextprime.c new file mode 100644 index 00000000..1734f614 --- /dev/null +++ b/gmp/tests/mpz/t-nextprime.c @@ -0,0 +1,222 @@ +/* Test mpz_nextprime. + +Copyright 2009 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 +#include + +#include "gmp.h" +#include "gmp-impl.h" +#include "tests.h" + +void +refmpz_nextprime (mpz_ptr p, mpz_srcptr t) +{ + mpz_add_ui (p, t, 1L); + while (! mpz_probab_prime_p (p, 10)) + mpz_add_ui (p, p, 1L); +} + +void +run (char *start, int reps, char *end, short diffs[]) +{ + mpz_t x, y; + int i; + + mpz_init_set_str (x, start, 0); + mpz_init (y); + + for (i = 0; i < reps; i++) + { + mpz_nextprime (y, x); + mpz_sub (x, y, x); + if (diffs != NULL && diffs[i] != mpz_get_ui (x)) + { + gmp_printf ("diff list discrepancy\n"); + abort (); + } + mpz_set (x, y); + } + + mpz_set_str (y, end, 0); + + if (mpz_cmp (x, y) != 0) + { + gmp_printf ("got %Zx\n", x); + gmp_printf ("want %Zx\n", y); + abort (); + } + + mpz_clear (y); + mpz_clear (x); +} + +extern short diff1[]; +extern short diff3[]; +extern short diff4[]; +extern short diff5[]; + +int +main (int argc, char **argv) +{ + int i; + int reps = 20; + gmp_randstate_ptr rands; + mpz_t bs, x, nxtp, ref_nxtp; + unsigned long size_range; + + tests_start(); + rands = RANDS; + + run ("2", 1000, "0x1ef7", diff1); + + run ("3", 1000 - 1, "0x1ef7", NULL); + + run ("0x8a43866f5776ccd5b02186e90d28946aeb0ed914", 50, + "0x8a43866f5776ccd5b02186e90d28946aeb0eeec5", diff3); + + run ("0x10000000000000000000000000000000000000", 50, + "0x100000000000000000000000000000000010ab", diff4); + + run ("0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898d8b1b", 50, + "0x1c2c26be55317530311facb648ea06b359b969715db83292ab8cf898da957", diff5); + + mpz_init (bs); + mpz_init (x); + mpz_init (nxtp); + mpz_init (ref_nxtp); + + if (argc == 2) + reps = atoi (argv[1]); + + for (i = 0; i < reps; i++) + { + mpz_urandomb (bs, rands, 32); + size_range = mpz_get_ui (bs) % 8 + 2; /* 0..1024 bit operands */ + + mpz_urandomb (bs, rands, size_range); + mpz_rrandomb (x, rands, mpz_get_ui (bs)); + +/* gmp_printf ("%ld: %Zd\n", mpz_sizeinbase (x, 2), x); */ + + mpz_nextprime (nxtp, x); + refmpz_nextprime (ref_nxtp, x); + if (mpz_cmp (nxtp, ref_nxtp) != 0) + abort (); + } + + mpz_clear (bs); + mpz_clear (x); + mpz_clear (nxtp); + mpz_clear (ref_nxtp); + + tests_end (); + return 0; +} + +short diff1[] = +{ + 1,2,2,4,2,4,2,4,6,2,6,4,2,4,6,6, + 2,6,4,2,6,4,6,8,4,2,4,2,4,14,4,6, + 2,10,2,6,6,4,6,6,2,10,2,4,2,12,12,4, + 2,4,6,2,10,6,6,6,2,6,4,2,10,14,4,2, + 4,14,6,10,2,4,6,8,6,6,4,6,8,4,8,10, + 2,10,2,6,4,6,8,4,2,4,12,8,4,8,4,6, + 12,2,18,6,10,6,6,2,6,10,6,6,2,6,6,4, + 2,12,10,2,4,6,6,2,12,4,6,8,10,8,10,8, + 6,6,4,8,6,4,8,4,14,10,12,2,10,2,4,2, + 10,14,4,2,4,14,4,2,4,20,4,8,10,8,4,6, + 6,14,4,6,6,8,6,12,4,6,2,10,2,6,10,2, + 10,2,6,18,4,2,4,6,6,8,6,6,22,2,10,8, + 10,6,6,8,12,4,6,6,2,6,12,10,18,2,4,6, + 2,6,4,2,4,12,2,6,34,6,6,8,18,10,14,4, + 2,4,6,8,4,2,6,12,10,2,4,2,4,6,12,12, + 8,12,6,4,6,8,4,8,4,14,4,6,2,4,6,2, + 6,10,20,6,4,2,24,4,2,10,12,2,10,8,6,6, + 6,18,6,4,2,12,10,12,8,16,14,6,4,2,4,2, + 10,12,6,6,18,2,16,2,22,6,8,6,4,2,4,8, + 6,10,2,10,14,10,6,12,2,4,2,10,12,2,16,2, + 6,4,2,10,8,18,24,4,6,8,16,2,4,8,16,2, + 4,8,6,6,4,12,2,22,6,2,6,4,6,14,6,4, + 2,6,4,6,12,6,6,14,4,6,12,8,6,4,26,18, + 10,8,4,6,2,6,22,12,2,16,8,4,12,14,10,2, + 4,8,6,6,4,2,4,6,8,4,2,6,10,2,10,8, + 4,14,10,12,2,6,4,2,16,14,4,6,8,6,4,18, + 8,10,6,6,8,10,12,14,4,6,6,2,28,2,10,8, + 4,14,4,8,12,6,12,4,6,20,10,2,16,26,4,2, + 12,6,4,12,6,8,4,8,22,2,4,2,12,28,2,6, + 6,6,4,6,2,12,4,12,2,10,2,16,2,16,6,20, + 16,8,4,2,4,2,22,8,12,6,10,2,4,6,2,6, + 10,2,12,10,2,10,14,6,4,6,8,6,6,16,12,2, + 4,14,6,4,8,10,8,6,6,22,6,2,10,14,4,6, + 18,2,10,14,4,2,10,14,4,8,18,4,6,2,4,6, + 2,12,4,20,22,12,2,4,6,6,2,6,22,2,6,16, + 6,12,2,6,12,16,2,4,6,14,4,2,18,24,10,6, + 2,10,2,10,2,10,6,2,10,2,10,6,8,30,10,2, + 10,8,6,10,18,6,12,12,2,18,6,4,6,6,18,2, + 10,14,6,4,2,4,24,2,12,6,16,8,6,6,18,16, + 2,4,6,2,6,6,10,6,12,12,18,2,6,4,18,8, + 24,4,2,4,6,2,12,4,14,30,10,6,12,14,6,10, + 12,2,4,6,8,6,10,2,4,14,6,6,4,6,2,10, + 2,16,12,8,18,4,6,12,2,6,6,6,28,6,14,4, + 8,10,8,12,18,4,2,4,24,12,6,2,16,6,6,14, + 10,14,4,30,6,6,6,8,6,4,2,12,6,4,2,6, + 22,6,2,4,18,2,4,12,2,6,4,26,6,6,4,8, + 10,32,16,2,6,4,2,4,2,10,14,6,4,8,10,6, + 20,4,2,6,30,4,8,10,6,6,8,6,12,4,6,2, + 6,4,6,2,10,2,16,6,20,4,12,14,28,6,20,4, + 18,8,6,4,6,14,6,6,10,2,10,12,8,10,2,10, + 8,12,10,24,2,4,8,6,4,8,18,10,6,6,2,6, + 10,12,2,10,6,6,6,8,6,10,6,2,6,6,6,10, + 8,24,6,22,2,18,4,8,10,30,8,18,4,2,10,6, + 2,6,4,18,8,12,18,16,6,2,12,6,10,2,10,2, + 6,10,14,4,24,2,16,2,10,2,10,20,4,2,4,8, + 16,6,6,2,12,16,8,4,6,30,2,10,2,6,4,6, + 6,8,6,4,12,6,8,12,4,14,12,10,24,6,12,6, + 2,22,8,18,10,6,14,4,2,6,10,8,6,4,6,30, + 14,10,2,12,10,2,16,2,18,24,18,6,16,18,6,2, + 18,4,6,2,10,8,10,6,6,8,4,6,2,10,2,12, + 4,6,6,2,12,4,14,18,4,6,20,4,8,6,4,8, + 4,14,6,4,14,12,4,2,30,4,24,6,6,12,12,14, + 6,4,2,4,18,6,12,8 +}; + +short diff3[] = +{ + 33,32,136,116,24,22,104,114,76,278,238,162,36,44,388,134, + 130,26,312,42,138,28,24,80,138,108,270,12,330,130,98,102, + 162,34,36,170,90,34,14,6,24,66,154,218,70,132,188,88, + 80,82 +}; + +short diff4[] = +{ + 91,92,64,6,104,24,46,258,68,18,54,100,68,154,26,4, + 38,142,168,42,18,26,286,104,136,116,40,2,28,110,52,78, + 104,24,54,96,4,626,196,24,56,36,52,102,48,156,26,18, + 42,40 +}; + +short diff5[] = +{ + 268,120,320,184,396,2,94,108,20,318,274,14,64,122,220,108, + 18,174,6,24,348,32,64,116,268,162,20,156,28,110,52,428, + 196,14,262,30,194,120,300,66,268,12,428,370,212,198,192,130, + 30,80 +};