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/* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2006-2012 Gabor Csardi <csardi.gabor@gmail.com>
334 Harvard street, Cambridge, MA 02139 USA
This program 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include <igraph.h>
#include "igraph_types_internal.h"
#include "bigint.h"
#include <limits.h>
int main() {
igraph_biguint_t A, B, C, D, E, zero, one;
igraph_biguint_init(&A);
igraph_biguint_init(&B);
igraph_biguint_init(&C);
igraph_biguint_init(&D);
igraph_biguint_init(&E);
igraph_biguint_init(&zero);
igraph_biguint_init(&one);
/* set & add & sub */
igraph_biguint_set_limb(&one, 1);
igraph_biguint_set_limb(&A, INT_MAX);
igraph_biguint_set_limb(&B, INT_MAX);
igraph_biguint_add(&A, &A, &B); /* A <- A + B */
igraph_biguint_add(&A, &A, &B); /* A <- A + B */
igraph_biguint_add(&A, &A, &B); /* A <- A + B */
igraph_biguint_print(&B);
putchar('\n');
igraph_biguint_print(&A);
putchar('\n');
igraph_biguint_sub(&A, &A, &B); /* A <- A - B */
igraph_biguint_sub(&A, &A, &B); /* A <- A + B */
igraph_biguint_sub(&A, &A, &B); /* A <- A + B */
if (!igraph_biguint_equal(&A, &B)) {
return 1;
}
/* inc & dec */
igraph_biguint_inc(&A, &A); /* A <- A + 1 */
igraph_biguint_dec(&A, &A); /* A <- A - 1 */
if (!igraph_biguint_equal(&A, &B)) {
return 2;
}
/* mul & div */
igraph_biguint_mul(&C, &A, &B); /* C <- A * B */
igraph_biguint_div(&E, &D, &C, &B); /* E <- C / B */
/* D <- C % B */
if (!igraph_biguint_equal(&E, &A)) {
return 3;
}
if (!igraph_biguint_equal(&D, &zero)) {
return 4;
}
igraph_biguint_mul(&C, &A, &A); /* C <- A * A */
igraph_biguint_mul(&D, &C, &A); /* C <- C * A */
igraph_biguint_mul(&C, &D, &A); /* C <- C * A */
igraph_biguint_div(&C, &D, &C, &A); /* C <- C / A */
igraph_biguint_div(&C, &D, &C, &A); /* C <- C / A */
igraph_biguint_div(&C, &D, &C, &A); /* C <- C / A */
igraph_biguint_div(&C, &D, &C, &A); /* C <- C / A */
if (!igraph_biguint_equal(&C, &one)) {
return 5;
}
igraph_biguint_destroy(&A);
igraph_biguint_destroy(&B);
igraph_biguint_destroy(&C);
igraph_biguint_destroy(&D);
igraph_biguint_destroy(&E);
igraph_biguint_destroy(&zero);
igraph_biguint_destroy(&one);
return 0;
}
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