From 40526eb7f247fdfc9d08c39ed3eaa97844b3c448 Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Sun, 5 Dec 2021 20:25:51 +0100
Subject: Fix build on C++20, tests

---
 src/recode.cpp | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'src/recode.cpp')

diff --git a/src/recode.cpp b/src/recode.cpp
index 8145fb8..89bd69b 100644
--- a/src/recode.cpp
+++ b/src/recode.cpp
@@ -4,7 +4,9 @@
 
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/endian/conversion.hpp>
+#include <boost/version.hpp>
 
+#include <algorithm>
 #include <filesystem>
 #include <functional>
 #include <iostream>
@@ -58,10 +60,27 @@ std::string get_id()
  return get_id(std::string{typeid(From).name()}, typeid(To).name());
 }
 
+// workaround for broken boost::endian::endian_reverse_inplace for C++20 in boost 1.74
+template<typename T>
+void reverse_endian_inplace(T& c)
+{
+ size_t size{sizeof(T)};
+ uint8_t* p{reinterpret_cast<uint8_t*>(&c)};
+ for (int i = 0; i < size / 2; i++) {
+  std::swap(p[i], p[size - 1 - i]);
+ }
+}
+
 template<typename T>
 void reverse_endian(std::basic_string<T>& s)
 {
- std::for_each(s.begin(), s.end(), [](T& c){boost::endian::endian_reverse_inplace(c);});
+ std::for_each(s.begin(), s.end(), [](T& c){
+#if BOOST_VERSION > 107400
+  boost::endian::endian_reverse_inplace(c);
+#else
+  reverse_endian_inplace(c);
+#endif
+ });
 }
 
 std::unordered_map<std::string, std::function<std::string(const std::string&, bool, bool)>> convert_map {};
-- 
cgit v1.2.3