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-rw-r--r--contrib/libgmp/mpz/mul_ui.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/contrib/libgmp/mpz/mul_ui.c b/contrib/libgmp/mpz/mul_ui.c
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--- /dev/null
+++ b/contrib/libgmp/mpz/mul_ui.c
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+/* mpz_mul_ui(product, multiplier, small_multiplicand) -- Set
+ PRODUCT to MULTIPLICATOR times SMALL_MULTIPLICAND.
+
+Copyright (C) 1991, 1993, 1994, 1996 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 Library General Public License as published by
+the Free Software Foundation; either version 2 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 Library General Public
+License for more details.
+
+You should have received a copy of the GNU Library General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+MA 02111-1307, USA. */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+void
+#if __STDC__
+mpz_mul_ui (mpz_ptr prod, mpz_srcptr mult, unsigned long int small_mult)
+#else
+mpz_mul_ui (prod, mult, small_mult)
+ mpz_ptr prod;
+ mpz_srcptr mult;
+ unsigned long int small_mult;
+#endif
+{
+ mp_size_t size = mult->_mp_size;
+ mp_size_t sign_product = size;
+ mp_limb_t cy;
+ mp_size_t prod_size;
+ mp_ptr prod_ptr;
+
+ size = ABS (size);
+
+ if (size == 0 || small_mult == 0)
+ {
+ prod->_mp_size = 0;
+ return;
+ }
+
+ prod_size = size + 1;
+ if (prod->_mp_alloc < prod_size)
+ _mpz_realloc (prod, prod_size);
+
+ prod_ptr = prod->_mp_d;
+
+ cy = mpn_mul_1 (prod_ptr, mult->_mp_d, size, (mp_limb_t) small_mult);
+ if (cy != 0)
+ {
+ prod_ptr[size] = cy;
+ size++;
+ }
+
+ prod->_mp_size = sign_product >= 0 ? size : -size;
+}
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