- Same shit as Christian did yesterday in ginac/.

[ginac.git] / check / time_toeplitz.cpp

diff --git a/check/time_toeplitz.cpp b/check/time_toeplitz.cpp
index 8390ea267d2cb269bee0d29bfcb984a8eaded9f6..1fa918681e5806278f0e90cc21a11b1ff85e5cb2 100644 (file)
--- a/check/time_toeplitz.cpp
+++ b/check/time_toeplitz.cpp
@@ -27,84 +27,84 @@
 
 static unsigned toeplitz_det(unsigned size)
 {
-    unsigned result = 0;
-    symbol a("a"), b("b");
-    ex p[8] = {a,
-               b,
-               a+b,
-               pow(a,2) + a*b + pow(b,2),
-               pow(a,3) + pow(a,2)*b - a*pow(b,2) + pow(b,3),
-               pow(a,4) + pow(a,3)*b + pow(a*b,2) + a*pow(b,3) + pow(b,4),
-               pow(a,5) + pow(a,4)*b + pow(a,3)*pow(b,2) - pow(a,2)*pow(b,3) + a*pow(b,4) + pow(b,5),
-               pow(a,6) + pow(a,5)*b + pow(a,4)*pow(b,2) + pow(a*b,3) + pow(a,2)*pow(b,4) + a*pow(b,5) + pow(b,6)
-    };
-    
-    // construct Toeplitz matrix:
-    matrix M(size,size);
-    for (unsigned ro=0; ro<size; ++ro) {
-        for (unsigned nd=ro; nd<size; ++nd) {
-            M.set(nd-ro,nd,p[ro]);
-            M.set(nd,nd-ro,p[ro]);
-        }
-    }
-    
-    // compute determinant:
-    ex tdet = M.determinant();
-    
-    // dirty consistency check of result:
-    if (!tdet.subs(a==0).subs(b==0).is_zero()) {
-        clog << "Determaint of Toeplitz matrix " << endl
-             << "M==" << M << endl
-             << "was miscalculated: det(M)==" << tdet << endl;
-        ++result;
-    }
-    
-    return result;
+       unsigned result = 0;
+       symbol a("a"), b("b");
+       ex p[8] = {a,
+                          b,
+                          a+b,
+                          pow(a,2) + a*b + pow(b,2),
+                          pow(a,3) + pow(a,2)*b - a*pow(b,2) + pow(b,3),
+                          pow(a,4) + pow(a,3)*b + pow(a*b,2) + a*pow(b,3) + pow(b,4),
+                          pow(a,5) + pow(a,4)*b + pow(a,3)*pow(b,2) - pow(a,2)*pow(b,3) + a*pow(b,4) + pow(b,5),
+                          pow(a,6) + pow(a,5)*b + pow(a,4)*pow(b,2) + pow(a*b,3) + pow(a,2)*pow(b,4) + a*pow(b,5) + pow(b,6)
+       };
+       
+       // construct Toeplitz matrix:
+       matrix M(size,size);
+       for (unsigned ro=0; ro<size; ++ro) {
+               for (unsigned nd=ro; nd<size; ++nd) {
+                       M.set(nd-ro,nd,p[ro]);
+                       M.set(nd,nd-ro,p[ro]);
+               }
+       }
+       
+       // compute determinant:
+       ex tdet = M.determinant();
+       
+       // dirty consistency check of result:
+       if (!tdet.subs(a==0).subs(b==0).is_zero()) {
+               clog << "Determaint of Toeplitz matrix " << endl
+                        << "M==" << M << endl
+                        << "was miscalculated: det(M)==" << tdet << endl;
+               ++result;
+       }
+       
+       return result;
 }
 
 unsigned time_toeplitz(void)
 {
-    unsigned result = 0;
-    
-    cout << "timing determinant of polyvariate symbolic Toeplitz matrices" << flush;
-    clog << "-------determinant of polyvariate symbolic Toeplitz matrices:" << endl;
-    
-    vector<unsigned> sizes;
-    vector<double> times;
-    timer longines;
-    
-    sizes.push_back(5);
-    sizes.push_back(6);
-    sizes.push_back(7);
-    sizes.push_back(8);
-    
-    for (vector<unsigned>::iterator i=sizes.begin(); i!=sizes.end(); ++i) {
-        int count = 1;
-        longines.start();
-        result += toeplitz_det(*i);
-        // correct for very small times:
-        while (longines.read()<0.1) {
-            toeplitz_det(*i);
-            ++count;
-        }
-        times.push_back(longines.read()/count);
-        cout << '.' << flush;
-    }
-    
-    if (!result) {
-        cout << " passed ";
-        clog << "(no output)" << endl;
-    } else {
-        cout << " failed ";
-    }
-    // print the report:
-    cout << endl << "    dim:   ";
-    for (vector<unsigned>::iterator i=sizes.begin(); i!=sizes.end(); ++i)
-        cout << '\t' << *i << 'x' << *i;
-    cout << endl << "    time/s:";
-    for (vector<double>::iterator i=times.begin(); i!=times.end(); ++i)
-        cout << '\t' << int(1000*(*i))*0.001;
-    cout << endl;
-    
-    return result;
+       unsigned result = 0;
+       
+       cout << "timing determinant of polyvariate symbolic Toeplitz matrices" << flush;
+       clog << "-------determinant of polyvariate symbolic Toeplitz matrices:" << endl;
+       
+       vector<unsigned> sizes;
+       vector<double> times;
+       timer longines;
+       
+       sizes.push_back(5);
+       sizes.push_back(6);
+       sizes.push_back(7);
+       sizes.push_back(8);
+       
+       for (vector<unsigned>::iterator i=sizes.begin(); i!=sizes.end(); ++i) {
+               int count = 1;
+               longines.start();
+               result += toeplitz_det(*i);
+               // correct for very small times:
+               while (longines.read()<0.1) {
+                       toeplitz_det(*i);
+                       ++count;
+               }
+               times.push_back(longines.read()/count);
+               cout << '.' << flush;
+       }
+       
+       if (!result) {
+               cout << " passed ";
+               clog << "(no output)" << endl;
+       } else {
+               cout << " failed ";
+       }
+       // print the report:
+       cout << endl << "       dim:   ";
+       for (vector<unsigned>::iterator i=sizes.begin(); i!=sizes.end(); ++i)
+               cout << '\t' << *i << 'x' << *i;
+       cout << endl << "       time/s:";
+       for (vector<double>::iterator i=times.begin(); i!=times.end(); ++i)
+               cout << '\t' << int(1000*(*i))*0.001;
+       cout << endl;
+       
+       return result;
 }