Set optional MatButterfly::normL1 transpose argument and fix a bug on...

Set optional MatButterfly::normL1 transpose argument and fix a bug on MatSparse size of MatButterfly::toMatSparse.

src/faust_linear_operator/CPU/faust_MatButterfly.h

@@ -79,7 +79,7 @@ namespace Faust
 			MatType getType() const;
 			void operator*=(const FPP alpha);
 			matvar_t* toMatIOVar(bool transpose, bool conjugate, const char *var_name=nullptr) const;
-			Real<FPP> normL1(const bool transpose) const;
+			Real<FPP> normL1(const bool transpose=false) const;
 			Real<FPP> norm() const;
 			Real<FPP> normL1(faust_unsigned_int& col_id, const bool transpose) const;
 			Vect<FPP,Cpu> get_col(faust_unsigned_int id) const;

src/faust_linear_operator/CPU/faust_MatButterfly.hpp

@@ -296,7 +296,7 @@ namespace Faust
 	}
 
 	template<typename FPP>
-	Real<FPP> MatButterfly<FPP, Cpu>::normL1(const bool transpose) const
+	Real<FPP> MatButterfly<FPP, Cpu>::normL1(const bool transpose/*=false*/) const
 	{
 		return toMatSparse().normL1(transpose);
 	}
@@ -423,7 +423,9 @@ namespace Faust
 					tripletList.push_back(Eigen::Triplet<FPP>(i, i + k, d2_ptr[i]));
 				}
 			}
-			return MatSparse<FPP, Cpu>(tripletList, s, s);
+			auto sp = MatSparse<FPP, Cpu>(tripletList, s, s);
+			sp.conservativeResize(s, s);
+			return sp;
 		}
 
 }