* these oopses for good, so we run those stupid tests... */
/*
- * GiNaC Copyright (C) 1999-2020 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2021 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
return result;
}
+static unsigned exam_mul_info()
+{
+ symbol x("x"), y("y");
+ ex e = x*y;
+ if (!e.info(info_flags::indefinite)) {
+ clog << "eek, product of two symbols is NOT indefinite\n";
+ return 1;
+ }
+ return 0;
+}
+
static unsigned is_polynomial_false_positive()
{
unsigned result = 0;
return result;
}
-// Bug in sqrfree_yun (fixed 2016-02-02).
-static unsigned exam_paranoia24()
-{
- unsigned result = 0;
- symbol x("x");
- ex e;
-
- e = (x-1)*(x+1) - x*x + 1; // an unexpanded 0...
- try {
- ex f = sqrfree(e);
- if (!f.is_zero()) {
- clog << "sqrfree(" << e << ") returns " << f << " instead of 0\n";
- ++result;
- }
- } catch (const exception &err) {
- clog << "sqrfree(" << e << ") throws " << err.what() << endl;
- ++result;
- }
-
- e = pow(x-1,3) - expand(pow(x-1,3)); // ...still after differentiating...
- try {
- ex f = sqrfree(e);
- if (!f.is_zero()) {
- clog << "sqrfree(" << e << ") returns " << f << " instead of 0\n";
- ++result;
- }
- } catch (const exception &err) {
- clog << "sqrfree(" << e << ") throws " << err.what() << endl;
- ++result;
- }
-
- e = pow(x-1,4) - expand(pow(x-1,4)); // ...and after differentiating twice.
- try {
- ex f = sqrfree(e);
- if (!f.is_zero()) {
- clog << "sqrfree(" << e << ") returns " << f << " instead of 0\n";
- ++result;
- }
- } catch (const exception &err) {
- clog << "sqrfree(" << e << ") throws " << err.what() << endl;
- ++result;
- }
-
- return result;
-}
-
// Bug in add ctor
-unsigned exam_paranoia25()
+unsigned exam_paranoia24()
{
symbol a("a"), b("b"), c("c");
ex e = -a + 2*b + c;
}
// Bug in partial fraction expansion
-unsigned exam_paranoia26()
+unsigned exam_paranoia25()
{
symbol x("x");
ex ex1=pow(x,4)/(x-1)/4;
}
// Bug in power expansion
-unsigned exam_paranoia27()
+unsigned exam_paranoia26()
{
unsigned result = 0;
symbol x("x"), y("y"), a("a");
return result;
}
+// Bug in collect()
+// cf. https://www.ginac.de/pipermail/ginac-list/2021-March/002337.html
+static unsigned exam_collect_multiply_referenced_lst()
+{
+ unsigned result = 0;
+ symbol x("x"), y("y");
+ ex a = x + y;
+ ex l = lst{x, y};
+ ex l2 = l; // make l a multiply referenced object
+
+ try {
+ ex b = collect(a, l);
+ } catch (const std::runtime_error & e) {
+ clog << "collect(" << ", " << l << ") threw a runtime_error("
+ << e.what() << ")" << endl;
+ ++result;
+ }
+
+ return result;
+}
+
unsigned exam_paranoia()
{
unsigned result = 0;
result += exam_paranoia18(); cout << '.' << flush;
result += exam_paranoia19(); cout << '.' << flush;
result += exam_paranoia20(); cout << '.' << flush;
+ result += exam_mul_info(); cout << '.' << flush;
result += is_polynomial_false_positive(); cout << '.' << flush;
result += exam_paranoia21(); cout << '.' << flush;
result += exam_paranoia22(); cout << '.' << flush;
result += exam_paranoia24(); cout << '.' << flush;
result += exam_paranoia25(); cout << '.' << flush;
result += exam_paranoia26(); cout << '.' << flush;
- result += exam_paranoia27(); cout << '.' << flush;
+ result += exam_collect_multiply_referenced_lst(); cout << '.' << flush;
return result;
}