how to build with clang?

[addriumruss]

how to build with clang?

[nlohmann]

What did you try?

[nlohmann]

@addriumruss Could you please explain what you mean with "build with clang"? The library is a C++ header - it can be build with Clang since version 3.4.

[addriumruss]

Hi Lohmann, thrank you so much for the respone. I tried these command: " mkdir build cd build cmake .. " it says my gcc version not supported, I set free the gcc version check, but in fact, my gcc is 6.4.0. after unchecked gcc, executed "make", then got this error: [root@centos7 build]# make [ 1%] Built target catch_main [ 3%] Built target test-iterators1 [ 4%] Building CXX object test/CMakeFiles/test-json_patch.dir/src/unit-json_patch.cpp.o In file included from /home/russ/file/json/test/src/unit-json_patch.cpp:32:0: /home/russ/file/json/single_include/nlohmann/json.hpp: In instantiation of ‘nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iterator nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::insert(nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::const_iterator, nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::const_iterator, nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::const_iterator) [with ObjectType = std::map; ArrayType = std::vector; StringType = std::basic_string<char>; BooleanType = bool; NumberIntegerType = long int; NumberUnsignedType = long unsigned int; NumberFloatType = double; AllocatorType = std::allocator; JSONSerializer = nlohmann::adl_serializer; nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::iterator = nlohmann::detail::iter_impl<nlohmann::basic_json<> >; nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::const_iterator = nlohmann::detail::iter_impl<const nlohmann::basic_json<> >]’: /home/russ/file/json/single_include/nlohmann/json.hpp:18589:25: required from ‘static nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer> nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>::diff(const nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>&, const nlohmann::basic_json<ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer>&, const string&) [with ObjectType = std::map; ArrayType = std::vector; StringType = std::basic_string<char>; BooleanType = bool; NumberIntegerType = long int; NumberUnsignedType = long unsigned int; NumberFloatType = double; AllocatorType = std::allocator; JSONSerializer = nlohmann::adl_serializer; std::string = std::basic_string<char>]’ /home/russ/file/json/test/src/unit-json_patch.cpp:121:13: required from here /home/russ/file/json/single_include/nlohmann/json.hpp:16174:36: 错误：no match for ‘operator=’ (operand types are ‘std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > >::iterator {aka __gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >}’ and ‘void’) result.m_it.array_iterator = m_value.array->insert( ^ /home/russ/file/json/single_include/nlohmann/json.hpp:16174:36: 附注：备选是： In file included from /usr/include/c++/4.8.2/bits/stl_algobase.h:67:0, from /usr/include/c++/4.8.2/bits/char_traits.h:39, from /usr/include/c++/4.8.2/ios:40, from /usr/include/c++/4.8.2/istream:38, from /usr/include/c++/4.8.2/sstream:38, from /home/russ/file/json/test/thirdparty/catch/catch.hpp:384, from /home/russ/file/json/test/src/unit-json_patch.cpp:30: /usr/include/c++/4.8.2/bits/stl_iterator.h:708:11: 附注：__gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >& __gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >::operator=(const __gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >&) class __normal_iterator ^ /usr/include/c++/4.8.2/bits/stl_iterator.h:708:11: 附注： no known conversion for argument 1 from ‘void’ to ‘const __gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >’ /usr/include/c++/4.8.2/bits/stl_iterator.h:708:11: 附注：__gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >& __gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >::operator=(__gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >&&) /usr/include/c++/4.8.2/bits/stl_iterator.h:708:11: 附注： no known conversion for argument 1 from ‘void’ to ‘__gnu_cxx::__normal_iterator<nlohmann::basic_json<>*, std::vector<nlohmann::basic_json<>, std::allocator<nlohmann::basic_json<> > > >&&’ make[2]: *** [test/CMakeFiles/test-json_patch.dir/src/unit-json_patch.cpp.o] 错误 1 make[1]: *** [test/CMakeFiles/test-json_patch.dir/all] 错误 2 make: *** [all] 错误 2 [root@centos7 build]# problem still exists. can you help figured it out? Thanks advance~ addriumruss@qq.com From: Niels Lohmann Date: 2018-09-23 19:41 To: nlohmann/json CC: addriumruss; Mention Subject: Re: [nlohmann/json] how to build with clang? (#1247) @addriumruss Could you please explain what you mean with "build with clang"? The library is a C++ header - it can be build with Clang since version 3.4. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

[addriumruss]

[russ@centos7 ~]$ gcc --version
gcc (GCC) 6.4.0
Copyright © 2017 Free Software Foundation, Inc.
本程序是自由软件；请参看源代码的版权声明。本软件没有任何担保；
包括没有适销性和某一专用目的下的适用性担保。
[russ@centos7 ~]$ clang --version
clang version 3.4.2 (tags/RELEASE_34/dot2-final)
Target: x86_64-redhat-linux-gnu
Thread model: posix
[russ@centos7 ~]$

[nlohmann]

Your compiler seems to use the STL from GCC 4.8.2. This compiler has not been supported until recently (#1257). You could try if the latest code in the develop branch works. Furthermore, you may want to check why GCC 6.4.0 uses includes from GCC 4.8.2 (/usr/include/c++/4.8.2).

[addriumruss]

Problem not exist any more with the latest code, really appreciated!
Thank you, nlohmann!