* Lewis and Michael Wester. */
/*
- * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2005 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
#include "times.h"
-static unsigned test(void)
+static unsigned test()
{
- numeric x(13*17*31);
- numeric y(13*19*29);
-
- for (int i=1; i<200; ++i)
- gcd(pow(x,300+(i%181)),pow(y,200+(i%183)));
-
- ex lastgcd = gcd(pow(x,300+(200%181)),pow(y,200+(200%183)));
- if (lastgcd != numeric("53174994123961114423610399251974962981084780166115806651505844915220196792416194060680805428433601792982500430324916963290494659936522782673704312949880308677990050199363768068005367578752699785180694630122629259539608472261461289805919741933")) {
- clog << "gcd(" << x << "^" << 300+(200%181) << ","
- << y << "^" << 200+(200%183) << ") erroneously returned "
- << lastgcd << endl;
- return 1;
- }
- return 0;
+ numeric x(13*17*31);
+ numeric y(13*19*29);
+
+ for (int i=1; i<200; ++i)
+ gcd(pow(x,300+(i%181)),pow(y,200+(i%183)));
+
+ ex lastgcd = gcd(pow(x,300+(200%181)),pow(y,200+(200%183)));
+ if (lastgcd != numeric("53174994123961114423610399251974962981084780166115806651505844915220196792416194060680805428433601792982500430324916963290494659936522782673704312949880308677990050199363768068005367578752699785180694630122629259539608472261461289805919741933")) {
+ clog << "gcd(" << x << "^" << 300+(200%181) << ","
+ << y << "^" << 200+(200%183) << ") erroneously returned "
+ << lastgcd << endl;
+ return 1;
+ }
+ return 0;
}
-unsigned time_lw_C(void)
+unsigned time_lw_C()
{
- unsigned result = 0;
- unsigned count = 0;
- timer rolex;
- double time = .0;
-
- cout << "timing Lewis-Wester test C (gcd of big integers)" << flush;
- clog << "-------Lewis-Wester test C (gcd of big integers)" << 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 C (gcd of big integers)" << flush;
+ clog << "-------Lewis-Wester test C (gcd of big integers):" << 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;
}