degree(), ldegree(), coeff(), lcoeff(), tcoeff() and collect() can now

[ginac.git] / ginac / ncmul.cpp

diff --git a/ginac/ncmul.cpp b/ginac/ncmul.cpp
index 12c1d5e41fcf799eae4485967196222989a282a1..9892670fccd4aafb0f243d98b9dc21899a4f66bf 100644 (file)
--- a/ginac/ncmul.cpp
+++ b/ginac/ncmul.cpp
@@ -218,7 +218,7 @@ ex ncmul::expand(unsigned options) const
                                                                                status_flags::expanded);
 }
 
-int ncmul::degree(const symbol & s) const
+int ncmul::degree(const ex & s) const
 {
        int deg_sum=0;
        for (exvector::const_iterator cit=seq.begin(); cit!=seq.end(); ++cit) {
@@ -227,7 +227,7 @@ int ncmul::degree(const symbol & s) const
        return deg_sum;
 }
 
-int ncmul::ldegree(const symbol & s) const
+int ncmul::ldegree(const ex & s) const
 {
        int deg_sum=0;
        for (exvector::const_iterator cit=seq.begin(); cit!=seq.end(); ++cit) {
@@ -236,7 +236,7 @@ int ncmul::ldegree(const symbol & s) const
        return deg_sum;
 }
 
-ex ncmul::coeff(const symbol & s, int n) const
+ex ncmul::coeff(const ex & s, int n) const
 {
        exvector coeffseq;
        coeffseq.reserve(seq.size());