X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=check%2Ftime_lw_E.cpp;h=c50cc297cb919b897e045efcb3d8b4d8a9f45824;hp=dfeac7d622a7a02c57e9d519dab0aeda66fa434b;hb=619d77d2676f7f1a562fb9fefc0ba6754fe2d750;hpb=a54293fb33b252ca926cd1aba18faacb0f16688a diff --git a/check/time_lw_E.cpp b/check/time_lw_E.cpp index dfeac7d6..c50cc297 100644 --- a/check/time_lw_E.cpp +++ b/check/time_lw_E.cpp @@ -4,7 +4,7 @@ * Lewis and Michael Wester. */ /* - * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany + * GiNaC Copyright (C) 1999-2007 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 @@ -18,52 +18,54 @@ * * 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" -static unsigned test(void) +static unsigned test() { - ex s; - symbol y("y"); - symbol t("t"); - - for (int i=1; i<=10; ++i) - s += i*y*pow(t,i)/pow(y + abs(5-i)*t,i); - - if (s.nops()!=10) { - clog << "something very strange happened" << endl; - return 1; - } - return 0; + ex s; + symbol y("y"); + symbol t("t"); + + for (int i=1; i<=10; ++i) + s += i*y*pow(t,i)/pow(y + abs(5-i)*t,i); + + s = s.normal(); + + if (s.subs(t==0)!=0) { + clog << "something very strange happened" << endl; + return 1; + } + return 0; } -unsigned time_lw_E(void) +unsigned time_lw_E() { - unsigned result = 0; - unsigned count = 1; - timer rolex; - double time = .0; - - cout << "timing Lewis-Wester test E (sum of rational fcns)" << flush; - clog << "-------Lewis-Wester test E (sum of rational fcns)" << 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 E (normalized sum of rational fcns)" << flush; + clog << "-------Lewis-Wester test E (normalized sum of rational fcns):" << 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 << time/count << 's' << endl; + + return result; }