From 80ece1a7ab8a93fb5dfa50d47387ae7c4a8f2a73 Mon Sep 17 00:00:00 2001
From: Jim Minter <jim-minter@users.noreply.github.com>
Date: Sat, 10 Feb 2024 07:34:22 -0600
Subject: [PATCH] Replace deprecated use of std::unary_function (#149)

---
 src/goesproc/types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/goesproc/types.h b/src/goesproc/types.h
index 4dd5e5d4..61164438 100644
--- a/src/goesproc/types.h
+++ b/src/goesproc/types.h
@@ -41,7 +41,7 @@ struct Channel {
 using SegmentKey = std::tuple<std::string, std::string, std::string>;
 
 // Corresponding hash function
-struct SegmentKeyHash : public std::unary_function<SegmentKey, std::size_t> {
+struct SegmentKeyHash : public std::function<std::size_t(SegmentKey)> {
   std::size_t operator()(const SegmentKey& k) const {
     return
       std::hash<std::string>()(std::get<0>(k)) ^