* Lewis and Michael Wester. */
/*
- * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2008 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
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "times.h"
+#include <iostream>
+#include <vector>
+#include "ginac.h"
+#include "timer.h"
+using namespace std;
+using namespace GiNaC;
-static unsigned test(void)
+static unsigned test()
{
- symbol x("x");
- symbol y("y");
- symbol z("z");
+ symbol x("x");
+ symbol y("y");
+ symbol z("z");
+
+ ex p = expand(pow(7*y*pow(x*z,2)-3*x*y*z+11*(x+1)*pow(y,2)+5*z+1,4)
+ *pow(3*x-7*y+2*z-3,5));
+ ex q = expand(pow(7*y*pow(x*z,2)-3*x*y*z+11*(x+1)*pow(y,2)+5*z+1,3)
+ *pow(3*x-7*y+2*z+3,6));
+ ex result = gcd(p,q);
+ if (result.expand()!=expand(pow(7*y*pow(x*z,2)-3*x*y*z+11*(x+1)*pow(y,2)+5*z+1,3))) {
+ clog << "gcd(expand((7*y*x^2*z^2-3*x*y*z+11*(x+1)*y^2+5*z+1)^4*(3*x-7*y+2*z-3)^5),expand((7*y*x^2*z^2-3*x*y*z+11*(x+1)*y^2+5*z+1)^3*(3*x-7*y+2*z+3)^6)) erroneously returned " << result << endl;
+ return 1;
+ }
+ return 0;
+}
- ex p = expand(pow(7*y*pow(x*z,2)-3*x*y*z+11*(x+1)*pow(y,2)+5*z+1,4)
- *pow(3*x-7*y+2*z-3,5));
- ex q = expand(pow(7*y*pow(x*z,2)-3*x*y*z+11*(x+1)*pow(y,2)+5*z+1,3)
- *pow(3*x-7*y+2*z+3,6));
- ex result = gcd(p,q);
- if (result.expand()!=expand(pow(7*y*pow(x*z,2)-3*x*y*z+11*(x+1)*pow(y,2)+5*z+1,3))) {
- clog << "gcd(expand((7*y*x^2*z^2-3*x*y*z+11*(x+1)*y^2+5*z+1)^4*(3*x-7*y+2*z-3)^5),expand((7*y*x^2*z^2-3*x*y*z+11*(x+1)*y^2+5*z+1)^3*(3*x-7*y+2*z+3)^6)) erroneously returned " << result << endl;
- return 1;
- }
- return 0;
+unsigned time_lw_G()
+{
+ unsigned result = 0;
+ unsigned count = 0;
+ timer rolex;
+ double time = .0;
+
+ cout << "timing Lewis-Wester test G (gcd of 3-var polys)" << flush;
+
+ rolex.start();
+ // correct for very small times:
+ do {
+ result = test();
+ ++count;
+ } while ((time=rolex.read())<0.1 && !result);
+ cout << '.' << flush;
+ cout << time/count << 's' << endl;
+
+ return result;
}
-unsigned time_lw_G(void)
+extern void randomify_symbol_serials();
+
+int main(int argc, char** argv)
{
- unsigned result = 0;
- unsigned count = 1;
- timer rolex;
- double time = .0;
-
- cout << "timing Lewis-Wester test G (gcd of 3-var polys)" << flush;
- clog << "-------Lewis-Wester test G (gcd of 3-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;
+ randomify_symbol_serials();
+ cout << setprecision(2) << showpoint;
+ return time_lw_G();
}