X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Ffactor.cpp;h=e96dccfa81eded8468a390f455d0b2f9f54462da;hb=65f2693a0948d1db0bc68d7656c64e1fed91c158;hp=8f8c87e858340e625df38a3bffe1fb3cfc0356fa;hpb=852fb174c43b49a3ce1b568f959d23e8a1959ee1;p=ginac.git

diff --git a/ginac/factor.cpp b/ginac/factor.cpp
index 8f8c87e8..e96dccfa 100644
--- a/ginac/factor.cpp
+++ b/ginac/factor.cpp
@@ -70,6 +70,7 @@
 #include <limits>
 #include <list>
 #include <vector>
+#include <stack>
 #ifdef DEBUGFACTOR
 #include <ostream>
 #endif
@@ -1830,7 +1831,7 @@ static upvec univar_diophant(const upvec& a, const ex& x, unsigned int m, unsign
 struct make_modular_map : public map_function {
 	cl_modint_ring R;
 	make_modular_map(const cl_modint_ring& R_) : R(R_) { }
-	ex operator()(const ex& e)
+	ex operator()(const ex& e) override
 	{
 		if ( is_a<add>(e) || is_a<mul>(e) ) {
 			return e.map(*this);
@@ -2092,7 +2093,7 @@ static ex hensel_multivar(const ex& a, const ex& x, const vector<EvalPoint>& I,
 	}
 	else {
 		lst res;
-		return lst();
+		return lst{};
 	}
 }
 
@@ -2266,7 +2267,7 @@ static ex factor_multivariate(const ex& poly, const exset& syms)
 	ex vn = pp.collect(x).lcoeff(x);
 	ex vnlst;
 	if ( is_a<numeric>(vn) ) {
-		vnlst = lst(vn);
+		vnlst = lst{vn};
 	}
 	else {
 		ex vnfactors = factor(vn);
@@ -2440,7 +2441,7 @@ static ex factor_multivariate(const ex& poly, const exset& syms)
 
 		// try Hensel lifting
 		ex res = hensel_multivar(pp, x, epv, prime, l, modfactors, C);
-		if ( res != lst() ) {
+		if ( res != lst{} ) {
 			ex result = cont * unit;
 			for ( size_t i=0; i<res.nops(); ++i ) {
 				result *= res.op(i).content(x) * res.op(i).unit(x);
@@ -2455,7 +2456,7 @@ static ex factor_multivariate(const ex& poly, const exset& syms)
  */
 struct find_symbols_map : public map_function {
 	exset syms;
-	ex operator()(const ex& e)
+	ex operator()(const ex& e) override
 	{
 		if ( is_a<symbol>(e) ) {
 			syms.insert(e);
@@ -2503,7 +2504,7 @@ static ex factor_sqrfree(const ex& poly)
 struct apply_factor_map : public map_function {
 	unsigned options;
 	apply_factor_map(unsigned options_) : options(options_) { }
-	ex operator()(const ex& e)
+	ex operator()(const ex& e) override
 	{
 		if ( e.info(info_flags::polynomial) ) {
 			return factor(e, options);