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|
// file kernel/n/h/add.h: addition/subtraction of natural integers
/*-----------------------------------------------------------------------+
| Copyright 2005-2006, Michel Quercia (michel.quercia@prepas.org) |
| |
| This file is part of Numerix. Numerix 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 2.1 of the License, or (at your option) any later |
| version. |
| |
| The Numerix 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; see the file COPYING. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - |
| Suite 330, Boston, MA 02111-1307, USA. |
+-----------------------------------------------------------------------+
| |
| Addition/soustraction |
| |
+-----------------------------------------------------------------------*/
/* ---------------------------------------- Addition
entre :
a = naturel de longueur la
b = naturel de longueur lb <= la
c = naturel de longueur la
sortie :
c <- a + b
retourne la retenue
*/
chiffre xn(add)(chiffre *a, long la, chiffre *b, long lb, chiffre *c);
/* ---------------------------------------- Incrmentation
entre :
a = naturel de longueur la
b = naturel de longueur lb avec lb <= la
sortie :
a <- a + b
retourne la retenue
*/
chiffre xn(inc)(chiffre *a, long la, chiffre *b, long lb);
/* ---------------------------------------- Incrmentation de 1
entre :
a = naturel de longueur la
sortie :
a <- a + 1
retourne la retenue
*/
chiffre xn(inc1)(chiffre *a, long la);
/* ---------------------------------------- Soustraction
entre :
a = naturel de longueur la
b = naturel de longueur lb <= la
c = naturel de longueur la
sortie :
c <- a - b
retourne la retenue
*/
chiffre xn(sub)(chiffre *a, long la, chiffre *b, long lb, chiffre *c);
/* ---------------------------------------- Dcrmentation
entre :
a = naturel de longueur la
b = naturel de longueur lb avec lb <= la
sortie :
a <- a - b
retourne la retenue
*/
chiffre xn(dec)(chiffre *a, long la, chiffre *b, long lb);
/* ---------------------------------------- Dcrmentation de 1
entre :
a = naturel de longueur la
sortie :
a <- a - 1
retourne la retenue
*/
chiffre xn(dec1)(chiffre *a, long la);
|
