/** @file exam_misc.cpp
*
*/
/*
* 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
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "exams.h"
#define VECSIZE 30
static unsigned exam_expand_subs(void)
{
unsigned result = 0;
symbol a[VECSIZE];
ex e, aux;
for (unsigned i=0; i(selfprobe)) {
clog << "ex (of numeric) after self-assignment became " << selfprobe << endl;
++result;
}
return result;
}
/* This checks whether subs() works as intended in some special cases. */
static unsigned exam_subs(void)
{
unsigned result = 0;
symbol x("x");
ex e1, e2;
// This used to fail in GiNaC 1.0.5 because it first substituted
// x+1 -> (x-1)+1 -> x, and then substituted again x -> x-1, giving
// the wrong result
e1 = x+1;
e2 = e1.subs(x == x-1);
if (!e2.is_equal(x)) {
clog << "(x+1).subs(x==x-1) erroneously returned " << e2 << " instead of x" << endl;
++result;
}
e1 = sin(1+sin(x));
e2 = e1.subs(sin(wild()) == cos(wild()));
if (!e2.is_equal(cos(1+cos(x)))) {
clog << "sin(1+sin(x)).subs(sin($1)==cos($1)) erroneously returned " << e2 << " instead of cos(1+cos(x))" << endl;
++result;
}
return result;
}
unsigned exam_misc(void)
{
unsigned result = 0;
cout << "examining miscellaneous other things" << flush;
clog << "----------miscellaneous other things:" << endl;
result += exam_expand_subs(); cout << '.' << flush;
result += exam_expand_subs2(); cout << '.' << flush;
result += exam_expand_power(); cout << '.' << flush;
result += exam_sqrfree(); cout << '.' << flush;
result += exam_operator_semantics(); cout << '.' << flush;
result += exam_subs(); cout << '.' << flush;
if (!result) {
cout << " passed " << endl;
clog << "(no output)" << endl;
} else {
cout << " failed " << endl;
}
return result;
}