[BUGFIX] Fix factor_univariate(poly, x) for constant poly.
[ginac.git] / check / exam_factor.cpp
index c1e98e7072d13a840821085b64ba43de72cda66c..c848fdd4ebc2ca6f9a29cd717366535dad2a1730 100644 (file)
@@ -26,8 +26,6 @@ using namespace GiNaC;
 #include <iostream>
 using namespace std;
 
-static symbol w("w"), x("x"), y("y"), z("z");
-
 static unsigned check_factor(const ex& e)
 {
        ex ee = e.expand();
@@ -44,8 +42,7 @@ static unsigned exam_factor1()
        unsigned result = 0;
        ex e;
        symbol x("x");
-       lst syms;
-       syms.append(x);
+       lst syms = {x};
        
        e = ex("1+x-x^3", syms);
        result += check_factor(e);
@@ -199,7 +196,7 @@ static unsigned exam_factor_wang()
        // "An Improved Multivariate Polynomial Factoring Algorithm"
        unsigned result = 0;
        ex e;
-       symbol x("x"), y("y"), z("z"), u("u");
+       symbol u("u"), w("w"), x("x"), y("y"), z("z");
 
        e = ex("(z+x*y+10)*(x*z+y+30)*(y*z+x+20)", lst{x, y, z});
        result += check_factor_expanded(e);