From f79aa07339e7ad57a9752c8c3742caa39ac5131f Mon Sep 17 00:00:00 2001
From: Guilhem Saurel <guilhem.saurel@laas.fr>
Date: Tue, 30 Jul 2024 12:14:58 +0200
Subject: [PATCH] remove std::unary_function

std::unary_function is useless and was removed in C++17.
---
 src/parser/factories/sequence.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/parser/factories/sequence.cc b/src/parser/factories/sequence.cc
index a9cd82e..d12ab4e 100644
--- a/src/parser/factories/sequence.cc
+++ b/src/parser/factories/sequence.cc
@@ -40,7 +40,7 @@ namespace hpp {
 namespace manipulation {
 namespace parser {
 namespace {
-struct StringIsEmpty : public std::unary_function<std::string, bool> {
+struct StringIsEmpty {
   bool operator()(std::string s) const { return s.empty(); }
 };