X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=check%2Fexam_paranoia.cpp;h=51bd3a55ee1baaa61d54a0f166f876d47f61dab6;hp=6c2f4571200409aacd8a37eed3fbbb410d079ef5;hb=56055db8e4780d223f6ddc680fb09ef994691c1d;hpb=84e6538290cbd2b13b755254c62689a404ce91b4;ds=sidebyside

diff --git a/check/exam_paranoia.cpp b/check/exam_paranoia.cpp
index 6c2f4571..51bd3a55 100644
--- a/check/exam_paranoia.cpp
+++ b/check/exam_paranoia.cpp
@@ -544,6 +544,18 @@ static unsigned is_polynomial_false_positive()
 	return result;
 }
 
+// Bug in power::expand reported by Isuru Fernando (fixed 2015-05-07).
+static unsigned exam_paranoia21()
+{
+	symbol x("x");
+	ex e = pow(x + sqrt(ex(2))*x, 2).expand();
+	if (e.nops() != 2) {
+		clog << "(x+sqrt(2)*x)^2 was wrongly expanded to " << e << "\n";
+		return 1;
+	}
+	return 0;
+}
+
 unsigned exam_paranoia()
 {
 	unsigned result = 0;
@@ -571,6 +583,7 @@ unsigned exam_paranoia()
 	result += exam_paranoia19();  cout << '.' << flush;
 	result += exam_paranoia20();  cout << '.' << flush;
 	result += is_polynomial_false_positive(); cout << '.' << flush;
+	result += exam_paranoia21();  cout << '.' << flush;
 	
 	return result;
 }