From 7812ecb1897362d240755d414e243b498e86f98a Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Sun, 21 Feb 2021 16:34:34 +0100
Subject: [PATCH] C++17 compat

---
 src/ifcgeom/taxonomy.h   | 2 +-
 src/ifcparse/IfcSchema.h | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/ifcgeom/taxonomy.h b/src/ifcgeom/taxonomy.h
index 11ba421914..c0d5aaa894 100644
--- a/src/ifcgeom/taxonomy.h
+++ b/src/ifcgeom/taxonomy.h
@@ -346,7 +346,7 @@ struct collection : public geom_item {
 
 	collection() {}
 	collection(const collection& other) {
-		std::transform(other.children.begin(), other.children.end(), std::back_inserter(children), std::mem_fun(&item::clone));
+		std::transform(other.children.begin(), other.children.end(), std::back_inserter(children), std::mem_fn(&item::clone));
 	}
 
 	template <typename T>
diff --git a/src/ifcparse/IfcSchema.h b/src/ifcparse/IfcSchema.h
index 158dcd1547..9cd54d9a9f 100644
--- a/src/ifcparse/IfcSchema.h
+++ b/src/ifcparse/IfcSchema.h
@@ -243,7 +243,7 @@ namespace IfcParse {
 
 		std::vector<const inverse_attribute*> inverse_attributes_;
 
-		class attribute_by_name_cmp : public std::unary_function<const attribute*, bool> {
+		class attribute_by_name_cmp {
 		private:
 			std::string name_;
 		public:
@@ -399,14 +399,14 @@ namespace IfcParse {
 		std::vector<const enumeration_type*> enumeration_types_;
 		std::vector<const entity*> entities_;
 
-		class declaration_by_name_cmp : public std::binary_function<const declaration*, const std::string&, bool> {
+		class declaration_by_name_cmp {
 		public:
 			bool operator()(const declaration* decl, const std::string& name) {
 				return decl->name_lc() < name;
 			}
 		};
 
-		class declaration_by_index_sort : public std::binary_function<const declaration*, const declaration*, bool> {
+		class declaration_by_index_sort {
 		public:
 			bool operator()(const declaration* a, const declaration* b) {
 				return a->index_in_schema() < b->index_in_schema();