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Diff for /OpenXM_contrib/gmp/mpz/Attic/mul_ui.c between version 1.2 and 1.3

version 1.2, 2000/09/16 15:49:49 version 1.3, 2003/08/25 15:57:59
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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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