X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fclass_info.h;h=1d3ed3d21b20d0fa4f43466e3152e60ff90b0a3d;hp=588a73b9c6a21375d9d5fa763ef609d411604d7f;hb=acae7ab5a4dc94d1f54ba794f32f5764cdb4d704;hpb=7d2c44606a17c76f6bec520c22eba96fa5875961

diff --git a/ginac/class_info.h b/ginac/class_info.h
index 588a73b9..1d3ed3d2 100644
--- a/ginac/class_info.h
+++ b/ginac/class_info.h
@@ -40,13 +40,13 @@ namespace GiNaC {
 template <class OPT>
 class class_info {
 public:
-	class_info(const OPT & o) : options(o), next(first), parent(NULL)
+	class_info(const OPT & o) : options(o), next(first), parent(nullptr)
 	{
 		first = this;
 		parents_identified = false;
 	}
 
-	/** Get pointer to class_info of parent class (or NULL). */
+	/** Get pointer to class_info of parent class (or nullptr). */
 	class_info *get_parent() const
 	{
 		identify_parents();
@@ -155,7 +155,7 @@ void class_info<OPT>::dump_hierarchy(bool verbose)
 		tree.push_back(tree_node(p));
 
 	// Identify children for all nodes and find the root
-	tree_node *root = NULL;
+	tree_node *root = nullptr;
 	for (typename std::vector<tree_node>::iterator i = tree.begin(); i != tree.end(); ++i) {
 		class_info *p = i->info->get_parent();
 		if (p) {
@@ -190,7 +190,7 @@ void class_info<OPT>::identify_parents()
 	}
 }
 
-template <class OPT> class_info<OPT> *class_info<OPT>::first = NULL;
+template <class OPT> class_info<OPT> *class_info<OPT>::first = nullptr;
 template <class OPT> bool class_info<OPT>::parents_identified = false;
 
 } // namespace GiNaC