In basic.hpp, a few compiling error with g++11, C++20,
I have tried the lastest version, and v0.8.2 tags, the same error message. No this message if compile with C++17.
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:61:54: error: expected ')' before 'h'
61 | basic<concurrency,names>(channel_type_hint::value h =channel_type_hint::access)
| ~ ^~
| )
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:66:42: error: expected ')' before '*' token
66 | basic<concurrency,names>(std::ostream * out)
| ~ ^~
| )
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:71:35: error: expected ')' before 'c'
71 | basic<concurrency,names>(level c, channel_type_hint::value h =
| ~ ^~
| )
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:77:35: error: expected ')' before 'c'
77 | basic<concurrency,names>(level c, std::ostream * out)
| ~ ^~
| )
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:83:5: error: template-id not allowed for destructor
83 | ~basic<concurrency,names>() {}
| ^
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:86:54: error: expected ')' before 'const'
86 | basic<concurrency,names>(basic<concurrency,names> const & other)
| ~ ^~~~~~
| )
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:99:54: error: expected ')' before '&&' token
99 | basic<concurrency,names>(basic<concurrency,names> && other)
| ~ ^~~
| )
In file included from /home/OGic-2/cppsrc/../3rdparty/websocketpp/roles/server_endpoint.hpp:31,
from /home/OGic-2/cppsrc/../3rdparty/websocketpp/server.hpp:31,
from /home/OGic-2/cppsrc/ws.hpp:4,
from /home/OGic-2/cppsrc/main.cpp:15:
/home/OGic-2/cppsrc/../3rdparty/websocketpp/endpoint.hpp:112:5: error: template-id not allowed for destructor
112 | ~endpoint<connection,config>() {}
| ^
In file included from /home/OGic-2/cppsrc/../3rdparty/websocketpp/server.hpp:31,
from /home/OGic-2/cppsrc/ws.hpp:4,
from /home/OGic-2/cppsrc/main.cpp:15:
/home/OGic-2/cppsrc/../3rdparty/websocketpp/roles/server_endpoint.hpp:75:5: error: template-id not allowed for destructor
75 | server() {}
| ^
/home/OGic-2/cppsrc/../3rdparty/websocketpp/roles/server_endpoint.hpp:79:34: error: expected ')' before '&' token
79 | server(server &) = delete;
| ~ ^
| )
/home/OGic-2/cppsrc/../3rdparty/websocketpp/roles/server_endpoint.hpp:87:34: error: expected ')' before '&&' token
87 | server(server && o) : endpoint<connection,config>(std::move(o)) {}
| ~ ^~~
| )
In file included from /home/OGic-2/cppsrc/globals.h:11,
from /home/OGic-2/cppsrc/CChannel.h:11,
from /home/OGic-2/cppsrc/COGCore.h:13,
from /home/OGic-2/cppsrc/main.cpp:17:
/home/OGic-2/cppsrc/../3rdparty/nlohmann/json.hpp: In static member function 'static CharType nlohmann::detail::binary_writer<BasicJsonType, CharType>::to_char_type(uint8_t)':
/home/OGic-2/cppsrc/../3rdparty/nlohmann/json.hpp:12595:28: warning: 'template struct std::is_pod' is deprecated: use is_standard_layout && is_trivial instead [-Wdeprecated-declarations]
12595 | static_assert(std::is_pod::value, "CharType must be POD");
| ^~~~~~
In file included from /home/OGic-2/cppsrc/../3rdparty/fmt/ranges.h:16,
from /home/OGic-2/cppsrc/main.cpp:3:
/usr/local/include/c++/11.1.0/type_traits:700:5: note: declared here
700 | is_pod
| ^~~~~~
In file included from /home/OGic-2/cppsrc/../3rdparty/websocketpp/roles/server_endpoint.hpp:31,
from /home/OGic-2/cppsrc/../3rdparty/websocketpp/server.hpp:31,
from /home/OGic-2/cppsrc/ws.hpp:4,
from /home/OGic-2/cppsrc/main.cpp:15:
/home/OGic-2/cppsrc/../3rdparty/websocketpp/endpoint.hpp: In instantiation of 'websocketpp::endpoint<connection, config>::endpoint(bool) [with connection = websocketpp::connectionwebsocketpp::config::asio; config = websocketpp::config::asio]':
/home/OGic-2/cppsrc/../3rdparty/websocketpp/roles/server_endpoint.hpp:69:43: required from 'websocketpp::server::server() [with config = websocketpp::config::asio]'
/home/OGic-2/cppsrc/ws.hpp:12:22: required from here
/home/OGic-2/cppsrc/../3rdparty/websocketpp/endpoint.hpp:92:16: error: no matching function for call to 'websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::alevel>::basic(const level&, const value&)'
92 | : m_alog(new alog_type(config::alog_level, log::channel_type_hint::access))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/OGic-2/cppsrc/../3rdparty/websocketpp/config/core.hpp:51,
from /home/OGic-2/cppsrc/../3rdparty/websocketpp/config/asio_no_tls.hpp:31,
from /home/OGic-2/cppsrc/ws.hpp:3,
from /home/OGic-2/cppsrc/main.cpp:15:
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate: 'websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::alevel>::basic()' (deleted)
59 | class basic {
| ^~~~~
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate expects 0 arguments, 2 provided
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate: 'websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::alevel>::basic(const websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::alevel>&)' (deleted)
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate expects 1 argument, 2 provided
In file included from /home/OGic-2/cppsrc/../3rdparty/websocketpp/roles/server_endpoint.hpp:31,
from /home/OGic-2/cppsrc/../3rdparty/websocketpp/server.hpp:31,
from /home/OGic-2/cppsrc/ws.hpp:4,
from /home/OGic-2/cppsrc/main.cpp:15:
/home/OGic-2/cppsrc/../3rdparty/websocketpp/endpoint.hpp:93:16: error: no matching function for call to 'websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::elevel>::basic(const level&, const value&)'
93 | , m_elog(new elog_type(config::elog_level, log::channel_type_hint::error))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /home/OGic-2/cppsrc/../3rdparty/websocketpp/config/core.hpp:51,
from /home/OGic-2/cppsrc/../3rdparty/websocketpp/config/asio_no_tls.hpp:31,
from /home/OGic-2/cppsrc/ws.hpp:3,
from /home/OGic-2/cppsrc/main.cpp:15:
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate: 'websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::elevel>::basic()' (deleted)
59 | class basic {
| ^~~~~
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate expects 0 arguments, 2 provided
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate: 'websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::elevel>::basic(const websocketpp::log::basic<websocketpp::concurrency::basic, websocketpp::log::elevel>&)' (deleted)
/home/OGic-2/cppsrc/../3rdparty/websocketpp/logger/basic.hpp:59:7: note: candidate expects 1 argument, 2 provided
make[2]: *** [CMakeFiles/cpp20.dir/build.make:76: CMakeFiles/cpp20.dir/main.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:232: CMakeFiles/cpp20.dir/all] Error 2
Source: zaphoyd/websocketpp