* Lewis and Michael Wester. */
/*
- * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
*
* 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
static unsigned test(void)
{
- symbol x("x");
- symbol y("y");
+ symbol x("x");
+ symbol y("y");
- ex p = expand(pow(pow(x,2)-3*x*y+pow(y,2),4)*pow(3*x-7*y+2,5));
- ex q = expand(pow(pow(x,2)-3*x*y+pow(y,2),3)*pow(3*x-7*y-2,6));
- ex result = gcd(p,q);
- if (result!=expand(pow(pow(x,2)-3*x*y+pow(y,2),3))) {
- clog << "gcd((x^2-3*x*y+y^2)^4*(3*x-7*y+2)^5),(x^2-3*x*y+y^2)^3*(3*x-7*y-2)^6)) erroneously returned " << result << endl;
- return 1;
- }
- return 0;
+ ex p = expand(pow(pow(x,2)-3*x*y+pow(y,2),4)*pow(3*x-7*y+2,5));
+ ex q = expand(pow(pow(x,2)-3*x*y+pow(y,2),3)*pow(3*x-7*y-2,6));
+ ex result = gcd(p,q);
+ if (result!=expand(pow(pow(x,2)-3*x*y+pow(y,2),3))) {
+ clog << "gcd(expand((x^2-3*x*y+y^2)^4*(3*x-7*y+2)^5),expand((x^2-3*x*y+y^2)^3*(3*x-7*y-2)^6)) erroneously returned " << result << endl;
+ return 1;
+ }
+ return 0;
}
unsigned time_lw_F(void)
{
- unsigned result = 0;
- unsigned count = 1;
- timer rolex;
- double time = .0;
-
- cout << "timing Lewis-Wester test F (gcd of 2-var polys)" << flush;
- clog << "-------Lewis-Wester test F (gcd of 2-var polys)" << endl;
-
- rolex.start();
- // correct for very small times:
- do {
- result = test();
- ++count;
- } while ((time=rolex.read())<0.1 && !result);
- cout << '.' << flush;
-
- if (!result) {
- cout << " passed ";
- clog << "(no output)" << endl;
- } else {
- cout << " failed ";
- }
- cout << int(1000*(time/count))*0.001 << 's' << endl;
-
- return result;
+ unsigned result = 0;
+ unsigned count = 0;
+ timer rolex;
+ double time = .0;
+
+ cout << "timing Lewis-Wester test F (gcd of 2-var polys)" << flush;
+ clog << "-------Lewis-Wester test F (gcd of 2-var polys)" << endl;
+
+ rolex.start();
+ // correct for very small times:
+ do {
+ result = test();
+ ++count;
+ } while ((time=rolex.read())<0.1 && !result);
+ cout << '.' << flush;
+
+ if (!result) {
+ cout << " passed ";
+ clog << "(no output)" << endl;
+ } else {
+ cout << " failed ";
+ }
+ cout << int(1000*(time/count))*0.001 << 's' << endl;
+
+ return result;
}