upgrade to std::format

5 files changed, 12 insertions, 10 deletions

diff --git a/server/main/main.cpp b/server/main/main.cpp
index b44f131..f9b803d 100644
--- a/server/main/main.cpp
+++ b/server/main/main.cpp
@@ -9,6 +9,7 @@
 #include <boost/program_options.hpp>
 
 #include <exception>
+#include <format>
 #include <iostream>
 
 int main(int argc, char* argv[]) {
@@ -29,7 +30,7 @@ int main(int argc, char* argv[]) {
             return 1;
         }
     } catch (const std::exception& e) {
-        std::cerr << "An error occured: " << e.what() << "\n";
+        std::cerr << std::format("An error occured: {}\n", e.what());
         return 1;
     } catch (...) {
         std::cerr << "An unknown error occured\n";
diff --git a/server/main/server.cpp b/server/main/server.cpp
index 4c0ab83..0f3fdc8 100644
--- a/server/main/server.cpp
+++ b/server/main/server.cpp
@@ -78,16 +78,16 @@ void Server::wait_for_signal() {
 
 void Server::handle_signal(const boost::system::error_code& ec, int signo) {
     if (ec) {
-        log::error("%1%: %2%", __func__, ec.message());
+        log::error("{}: {}", __func__, ec.message());
     }
 
-    log::log("Caught signal %1%", signo);
+    log::log("Caught signal {}", signo);
 
     try {
         m_acceptor.close();
         m_session_mgr.stop_all();
     } catch (const std::exception& e) {
-        log::error(e.what());
+        log::error(e);
     }
 }
 
@@ -101,7 +101,7 @@ void Server::accept() {
 
 void Server::handle_accept(SessionPtr session, const boost::system::error_code& ec) {
     if (ec) {
-        log::error("%1%: %2%", __func__, ec.message());
+        log::error("{}: {}", __func__, ec.message());
         return;
     }
 
diff --git a/server/main/session.cpp b/server/main/session.cpp
index b4b9fc5..c51fcd6 100644
--- a/server/main/session.cpp
+++ b/server/main/session.cpp
@@ -82,7 +82,7 @@ void Session::read() {
 
 void Session::handle_read(const boost::system::error_code& ec, std::size_t bytes) {
     if (ec) {
-        log::error("%1%: %2%", __func__, ec.message());
+        log::error("{}: {}", __func__, ec.message());
         m_session_mgr.stop(shared_from_this());
         return;
     }
@@ -117,7 +117,7 @@ void Session::write(const std::string& output) {
 
 void Session::handle_write(const boost::system::error_code& ec, std::size_t) {
     if (ec) {
-        log::error("%1%: %2%", __func__, ec.message());
+        log::error("{}: {}", __func__, ec.message());
         m_session_mgr.stop(shared_from_this());
         return;
     }
diff --git a/server/main/session_manager.cpp b/server/main/session_manager.cpp
index 0b6e7cf..59f09fd 100644
--- a/server/main/session_manager.cpp
+++ b/server/main/session_manager.cpp
@@ -34,7 +34,7 @@ void SessionManager::stop(const SessionPtr& session) {
 
 void SessionManager::stop_all() {
     std::lock_guard<std::mutex> lck{m_mtx};
-    log::log("Closing the remaining %1% session(s)...", m_sessions.size());
+    log::log("Closing the remaining {} session(s)...", m_sessions.size());
     for (const auto& session : m_sessions) {
         session->stop();
     }
diff --git a/server/main/settings.hpp b/server/main/settings.hpp
index b6c5b86..0c40ac3 100644
--- a/server/main/settings.hpp
+++ b/server/main/settings.hpp
@@ -10,6 +10,7 @@
 #include <cstddef>
 #include <exception>
 #include <filesystem>
+#include <format>
 #include <iostream>
 #include <string>
 #include <thread>
@@ -72,7 +73,7 @@ public:
     }
 
     void usage_error(const std::exception& e) const {
-        std::cerr << "usage error: " << e.what() << '\n';
+        std::cerr << std::format("usage error: {}\n", e.what());
         std::cerr << *this;
     }
 
@@ -88,7 +89,7 @@ private:
     Settings m_settings;
 
     friend std::ostream& operator<<(std::ostream& os, const SettingsParser& parser) {
-        os << "usage: " << parser.m_prog_name << ' ' << get_short_description() << '\n';
+        os << std::format("usage: {} {}\n", parser.m_prog_name, get_short_description());
         os << parser.m_visible;
         return os;
     }