Alexeis patches for documentation and correct degree of 1/symbol.
[ginac.git] / ginac / mul.cpp
index dd96a70fafdb15114985a1dce12d6d4aeba3569b..9bbcd611f697df3bdaf87884616845aec9948e84 100644 (file)
@@ -315,7 +315,11 @@ int mul::degree(const ex & s) const
        epvector::const_iterator i = seq.begin(), end = seq.end();
        while (i != end) {
                if (ex_to<numeric>(i->coeff).is_integer())
-                       deg_sum += i->rest.degree(s) * ex_to<numeric>(i->coeff).to_int();
+                       deg_sum += recombine_pair_to_ex(*i).degree(s);
+               else {
+                       if (i->rest.has(s))
+                               throw std::runtime_error("mul::degree() undefined degree because of non-integer exponent");
+               }
                ++i;
        }
        return deg_sum;
@@ -328,7 +332,11 @@ int mul::ldegree(const ex & s) const
        epvector::const_iterator i = seq.begin(), end = seq.end();
        while (i != end) {
                if (ex_to<numeric>(i->coeff).is_integer())
-                       deg_sum += i->rest.ldegree(s) * ex_to<numeric>(i->coeff).to_int();
+                       deg_sum += recombine_pair_to_ex(*i).ldegree(s);
+               else {
+                       if (i->rest.has(s))
+                               throw std::runtime_error("mul::ldegree() undefined degree because of non-integer exponent");
+               }
                ++i;
        }
        return deg_sum;