+++ /dev/null
-/** @file mul_eval_memleak.cpp
- *
- * mul_eval_memleak.cpp Test for memory leak in {mul,power}::eval
- *
- * The bug was introduced by
- *
- * commit f418c6ee4d558c852e1fb95533af07a3ae43f409
- * Author: Alexei Sheplyakov <varg@theor.jinr.ru>
- * Date: Wed Jul 11 14:34:42 2007 +0400
- * (it was commited into the official branch as
- * commit a602d34c225dceb3e53742a7b3e19a4b5e280485
- * Author: Jens Vollinga <vollinga@thep.physik.uni-mainz.de>
- * Date: Wed Jul 11 21:07:40 2007 +0000)
- */
-
-/*
- * GiNaC Copyright (C) 1999-2020 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <ginac/ginac.h>
-using namespace GiNaC;
-
-#include <iostream>
-#include <stdexcept>
-#include <string>
-using namespace std;
-
-const unsigned check_mul_eval_memleak(const unsigned N)
-{
- // Expanding this expression into a Laurent series triggers the bug.
- static const string e_str("\
-1/605927415293858601*tgamma(3-eps)^(-1)*tgamma(2-eps)*(5013234896802\
-*(-1+2*eps)*((-2539001/2)*eps^(-2)+(-7617003/2+1692800*log(920*scale\
-^(-1))+3385202*log(1301*scale^(-1)))*eps^(-1)+F)+(846400+2539001*eps\
-)*(2539001*(-1+2*eps)*((-2539001/2)*eps^(-2)+(-7617003/2+1692800*log\
-(920*scale^(-1))+3385202*log(1301*scale^(-1)))*eps^(-1)+F)+286523497\
-2800*(-1+eps)^(-1)*eps^(-2)*(920*scale^(-1))^(-2*eps)*(1301*scale^(-\
-1))^(-2*eps)*tgamma(1+eps)^2)+6061411748045832000*(-1+eps)^(-1)*eps^\
-(-2)*(920*scale^(-1))^(-2*eps)*(1301*scale^(-1))^(-2*eps)*tgamma(1+e\
-ps)^2+716056132401*((-2539001/2)*eps^(-2)+(-7617003/2+1692800*log(92\
-0*scale^(-1))+3385202*log(1301*scale^(-1)))*eps^(-1)+F))+71656139360\
-0/716056132401*tgamma(1-eps)*tgamma(2*eps)^(-1)*tgamma(eps)^2*tgamma\
-(3-eps)^(-1)*(920*scale^(-1))^(-4*eps)*tgamma(-1+2*eps)-2/6059274152\
-93858601*tgamma(3-eps)^(-1)*(2149010446400*(-1+2*eps)*((-2539001/2)*\
-eps^(-2)+(-7617003/2+1692800*log(920*scale^(-1))+3385202*log(1301*sc\
-ale^(-1)))*eps^(-1)+F)+2425134880977920000*(-1+eps)^(-1)*eps^(-2)*(9\
-20*scale^(-1))^(-2*eps)*(1301*scale^(-1))^(-2*eps)*tgamma(1+eps)^2-7\
-16056132401*((-2539001/2)*eps^(-2)+(-7617003/2+1692800*log(920*scale\
-^(-1))+3385202*log(1301*scale^(-1)))*eps^(-1)+F)+1692601*(-1+2*eps)*\
-(2539001*(-1+2*eps)*((-2539001/2)*eps^(-2)+(-7617003/2+1692800*log(9\
-20*scale^(-1))+3385202*log(1301*scale^(-1)))*eps^(-1)+F)+28652349728\
-00*(-1+eps)^(-1)*eps^(-2)*(920*scale^(-1))^(-2*eps)*(1301*scale^(-1)\
-)^(-2*eps)*tgamma(1+eps)^2))*tgamma(2-eps)+(1/716056132401*I)*tgamma\
-(-1+eps)*mb^2*(mb*scale^(-1))^(-2*eps)*((716392960000*I)*mb^(-2)*(92\
-0*scale^(-1))^(-2*eps)*tgamma(-2+eps)-(2864898145201*I)*mb^(-2)*(130\
-1*scale^(-1))^(-2*eps)*tgamma(-2+eps)-(716224526400*I)*tgamma(-1+eps\
-)*mb^(-2)*(920*scale^(-1))^(-2*eps))-3385202/605927415293858601*tgam\
-ma(3-eps)^(-1)*tgamma(2-eps)*(2539001*(-1+2*eps)*((-2539001/2)*eps^(\
--2)+(-7617003/2+1692800*log(920*scale^(-1))+3385202*log(1301*scale^(\
--1)))*eps^(-1)+F)+2865234972800*(-1+eps)^(-1)*eps^(-2)*(920*scale^(-\
-1))^(-2*eps)*(1301*scale^(-1))^(-2*eps)*tgamma(1+eps)^2+846201*((-25\
-39001/2)*eps^(-2)+(-7617003/2+1692800*log(920*scale^(-1))+3385202*lo\
-g(1301*scale^(-1)))*eps^(-1)+F))\
-");
- const symbol eps("eps"), scale("scale"), mb("mb"), F("F");
- const lst syms(eps, scale, mb, F);
- const ex e0(e_str, syms);
-
- unsigned i = 0;
- unsigned n_failures = 0;
-
- ex e;
- try {
- for (; i < N; i++)
- e = e0.series(eps, 1).subs(Euler==0).expand();
- } catch (std::bad_alloc) {
- return i;
- }
- return 0;
-}
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-
-static void set_VM_limit(const unsigned long MB) {
- const unsigned mem_lim_kb = MB*1024*1024;
- struct rlimit lim;
- lim.rlim_cur = mem_lim_kb;
- lim.rlim_max = mem_lim_kb;
- setrlimit(RLIMIT_AS, &lim);
-}
-
-int main(int argc, char** argv) {
- static const unsigned max_mem = 32; // megabytes
- // otherwise one need wait for a long[er] time.
- set_VM_limit(max_mem);
- static const unsigned n_of_tests = 10000;
- const unsigned n_loops = check_mul_eval_memleak(n_of_tests);
- if (n_loops) {
- cerr << "memory exhausted after " << n_loops << " loops" << endl;
- return 1;
- }
- return 0;
-}
git://www.ginac.de / ginac.git / blobdiff