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-rw-r--r--gnu/lib/libgmp/tests/tst-mul.c261
1 files changed, 0 insertions, 261 deletions
diff --git a/gnu/lib/libgmp/tests/tst-mul.c b/gnu/lib/libgmp/tests/tst-mul.c
deleted file mode 100644
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--- a/gnu/lib/libgmp/tests/tst-mul.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/* Test mpz_add, mpz_cmp, mpz_cmp_ui, mpz_divmod, mpz_mul.
-
-Copyright (C) 1991, 1993 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 General Public License as published by
-the Free Software Foundation; either version 2, 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 General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with the GNU MP Library; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#include <stdio.h>
-#include "gmp.h"
-#include "gmp-impl.h"
-#include "longlong.h"
-#include "urandom.h"
-
-void debug_mp ();
-mp_size _mpn_mul_classic ();
-void mpz_refmul ();
-
-#ifndef SIZE
-#define SIZE 8
-#endif
-
-main (argc, argv)
- int argc;
- char **argv;
-{
- MP_INT multiplier, multiplicand;
- MP_INT product, ref_product;
- MP_INT quotient, remainder;
- mp_size multiplier_size, multiplicand_size;
- int i;
- int reps = 100000;
-
- if (argc == 2)
- reps = atoi (argv[1]);
-
- mpz_init (&multiplier);
- mpz_init (&multiplicand);
- mpz_init (&product);
- mpz_init (&ref_product);
- mpz_init (&quotient);
- mpz_init (&remainder);
-
- for (i = 0; i < reps; i++)
- {
- multiplier_size = urandom () % SIZE - SIZE/2;
- multiplicand_size = urandom () % SIZE - SIZE/2;
-
- mpz_random2 (&multiplier, multiplier_size);
- mpz_random2 (&multiplicand, multiplicand_size);
-
- mpz_mul (&product, &multiplier, &multiplicand);
- mpz_refmul (&ref_product, &multiplier, &multiplicand);
- if (mpz_cmp_ui (&multiplicand, 0) != 0)
- mpz_divmod (&quotient, &remainder, &product, &multiplicand);
-
- if (mpz_cmp (&product, &ref_product))
- dump_abort (&multiplier, &multiplicand);
-
- if (mpz_cmp_ui (&multiplicand, 0) != 0)
- if (mpz_cmp_ui (&remainder, 0) || mpz_cmp (&quotient, &multiplier))
- dump_abort (&multiplier, &multiplicand);
- }
-
- exit (0);
-}
-
-void
-mpz_refmul (w, u, v)
- MP_INT *w;
- const MP_INT *u;
- const MP_INT *v;
-{
- mp_size usize = u->size;
- mp_size vsize = v->size;
- mp_size wsize;
- mp_size sign_product;
- mp_ptr up, vp;
- mp_ptr wp;
- mp_ptr free_me = NULL;
- size_t free_me_size;
-
- sign_product = usize ^ vsize;
- usize = ABS (usize);
- vsize = ABS (vsize);
-
- if (usize < vsize)
- {
- /* Swap U and V. */
- {const MP_INT *t = u; u = v; v = t;}
- {mp_size t = usize; usize = vsize; vsize = t;}
- }
-
- up = u->d;
- vp = v->d;
- wp = w->d;
-
- /* Ensure W has space enough to store the result. */
- wsize = usize + vsize;
- if (w->alloc < wsize)
- {
- if (wp == up || wp == vp)
- {
- free_me = wp;
- free_me_size = w->alloc;
- }
- else
- (*_mp_free_func) (wp, w->alloc * BYTES_PER_MP_LIMB);
-
- w->alloc = wsize;
- wp = (mp_ptr) (*_mp_allocate_func) (wsize * BYTES_PER_MP_LIMB);
- w->d = wp;
- }
- else
- {
- /* Make U and V not overlap with W. */
- if (wp == up)
- {
- /* W and U are identical. Allocate temporary space for U. */
- up = (mp_ptr) alloca (usize * BYTES_PER_MP_LIMB);
- /* Is V identical too? Keep it identical with U. */
- if (wp == vp)
- vp = up;
- /* Copy to the temporary space. */
- MPN_COPY (up, wp, usize);
- }
- else if (wp == vp)
- {
- /* W and V are identical. Allocate temporary space for V. */
- vp = (mp_ptr) alloca (vsize * BYTES_PER_MP_LIMB);
- /* Copy to the temporary space. */
- MPN_COPY (vp, wp, vsize);
- }
- }
-
- wsize = _mpn_mul_classic (wp, up, usize, vp, vsize);
- w->size = sign_product < 0 ? -wsize : wsize;
- if (free_me != NULL)
- (*_mp_free_func) (free_me, free_me_size * BYTES_PER_MP_LIMB);
-
- alloca (0);
-}
-
-mp_size
-_mpn_mul_classic (prodp, up, usize, vp, vsize)
- mp_ptr prodp;
- mp_srcptr up;
- mp_size usize;
- mp_srcptr vp;
- mp_size vsize;
-{
- mp_size n;
- mp_size prod_size;
- mp_limb cy;
- mp_size i, j;
- mp_limb prod_low, prod_high;
- mp_limb cy_dig;
- mp_limb v_limb, c;
-
- if (vsize == 0)
- return 0;
-
- /* Offset UP and PRODP so that the inner loop can be faster. */
- up += usize;
- prodp += usize;
-
- /* Multiply by the first limb in V separately, as the result can
- be stored (not added) to PROD. We also avoid a loop for zeroing. */
- v_limb = vp[0];
- cy_dig = 0;
- j = -usize;
- do
- {
- umul_ppmm (prod_high, prod_low, up[j], v_limb);
- add_ssaaaa (cy_dig, prodp[j], prod_high, prod_low, 0, cy_dig);
- j++;
- }
- while (j < 0);
-
- prodp[j] = cy_dig;
- prodp++;
-
- /* For each iteration in the outer loop, multiply one limb from
- U with one limb from V, and add it to PROD. */
- for (i = 1; i < vsize; i++)
- {
- v_limb = vp[i];
- cy_dig = 0;
- j = -usize;
-
- /* Inner loops. Simulate the carry flag by jumping between
- these loops. The first is used when there was no carry
- in the previois iteration; the second when there was carry. */
-
- do
- {
- umul_ppmm (prod_high, prod_low, up[j], v_limb);
- add_ssaaaa (cy_dig, prod_low, prod_high, prod_low, 0, cy_dig);
- c = prodp[j];
- prod_low += c;
- prodp[j] = prod_low;
- if (prod_low < c)
- goto cy_loop;
- ncy_loop:
- j++;
- }
- while (j < 0);
-
- prodp[j] = cy_dig;
- prodp++;
- continue;
-
- do
- {
- umul_ppmm (prod_high, prod_low, up[j], v_limb);
- add_ssaaaa (cy_dig, prod_low, prod_high, prod_low, 0, cy_dig);
- c = prodp[j];
- prod_low += c + 1;
- prodp[j] = prod_low;
- if (prod_low > c)
- goto ncy_loop;
- cy_loop:
- j++;
- }
- while (j < 0);
-
- cy_dig += 1;
- prodp[j] = cy_dig;
- prodp++;
- }
-
- return usize + vsize - (cy_dig == 0);
-}
-
-dump_abort (multiplier, multiplicand)
- MP_INT *multiplier, *multiplicand;
-{
- fprintf (stderr, "ERROR\n");
- fprintf (stderr, "multiplier = "); debug_mp (multiplier, -16);
- fprintf (stderr, "multiplicand = "); debug_mp (multiplicand, -16);
- abort();
-}
-
-void
-debug_mp (x, base)
- MP_INT *x;
-{
- mpz_out_str (stderr, base, x); fputc ('\n', stderr);
-}
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