index 75dd42610a8718792e328048afc2d1b022902852..728b1286b8e420bcde659123817c856f782bb8eb 100644 (file)
@@ -4,7 +4,7 @@
*  Lewis and Michael Wester. */

/*
- *  GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2002 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 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;
+       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;
}

unsigned time_lw_G(void)
{
-    unsigned result = 0;
-    unsigned count = 0;
-    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;
+       unsigned result = 0;
+       unsigned count = 0;
+       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;
}