error: macro "curl_easy_setopt" passed 4 arguments, but takes just 3

[Shadowsith]

If I tried to compile some of the examples like the main example in the project README I got following error:

/usr/local/ews/ews.hpp:8465:78: error: macro "curl_easy_setopt" passed 4 arguments, but takes just 3
 8465 |             auto retcode = curl_easy_setopt(handle_.get(), option, arg1, arg2);
      |                                                                              ^
In file included from /usr/local/ews/ews.hpp:57,
                 from test.cpp:1:
/usr/include/x86_64-linux-gnu/curl/curl.h:3097: note: macro "curl_easy_setopt" defined here
 3097 | #define curl_easy_setopt(handle,opt,param) curl_easy_setopt(handle,opt,param)
      |
In file included from test.cpp:1:
/usr/local/ews/ews.hpp: In member function ‘void ews::internal::http_request::set_option(CURLoption, T1, T2)’:
/usr/local/ews/ews.hpp:8474:39: error: cannot convert ‘CURLcode (*)(void*, CURLoption, ...)’ to ‘CURLcode’
 8474 |                                       retcode);
      |                                       ^~~~~~~
      |                                       |
      |                                       CURLcode (*)(void*, CURLoption, ...)
/usr/local/ews/ews.hpp:7740:72: note:   initializing argument 2 of ‘ews::curl_error ews::internal::make_curl_error(const string&, CURLcode, const string&)’
 7740 |     inline curl_error make_curl_error(const std::string& msg, CURLcode rescode,
      |                                                               ~~~~~~~~~^~~~~~~
/usr/local/ews/ews.hpp:8480:39: error: cannot convert ‘CURLcode (*)(void*, CURLoption, ...)’ to ‘CURLcode’
 8480 |                                       retcode);
      |                                       ^~~~~~~
      |                                       |
      |                                       CURLcode (*)(void*, CURLoption, ...)
/usr/local/ews/ews.hpp:7740:72: note:   initializing argument 2 of ‘ews::curl_error ews::internal::make_curl_error(const string&, CURLcode, const string&)’
 7740 |     inline curl_error make_curl_error(const std::string& msg, CURLcode rescode,
      |                                                               ~~~~~~~~~^~~~~~~

OS:

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.1 LTS
Release:        22.04
Codename:       jammy

curl:

$ curl --version
curl 7.81.0 (x86_64-pc-linux-gnu) libcurl/7.81.0 OpenSSL/3.0.2 zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libidn2/2.3.2 libpsl/0.21.0 (+libidn2/2.3.2) libssh/0.9.6/openssl/zlib nghttp2/1.43.0 librtmp/2.3 OpenLDAP/2.5.12
Release-Date: 2022-01-05
Protocols: dict file ftp ftps gopher gophers http https imap imaps ldap ldaps mqtt pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli GSS-API HSTS HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz NTLM NTLM_WB PSL SPNEGO SSL TLS-SRP UnixSockets zstd

Which libcurl version has been used as base for the project?

[Shadowsith]

I was now able to fix the error myself. I commented out the template method void set_option(CURLoption option, T1 arg1, T2 arg2) which includes curl_easy_setopt with 4 arugments in ews.hpp and since then I can compile it without errors and it works as described.

[idolum]

@Shadowsith Thank your for pointing this issue out! But it should compile without changing the code. I reopend the issue and will take a look at it.

[BAMSHK]

The problem still exists.

[idolum]

@Shadowsith @BAMSHK It nothing to do with the curl and os version. I tried it on my machine (ubuntu 22.04, curl 7.81). But guess it is related to the compiler and its version. In the curl header file some these macros are defined in for certain compiler version. This is the one I used:

gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

[BAMSHK]

@Shadowsith @BAMSHK It nothing to do with the curl and os version. I tried it on my machine (ubuntu 22.04, curl 7.81). But guess it is related to the compiler and its version. In the curl header file some these macros are defined in for certain compiler version. This is the one I used:

gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Thanks for your reply, in the end it turned out to be because I didn't introduce the following macro definition when compiling on Linux, and without it the code would go to the branch that calls the windows template