mac g++ 编译报错1个语法错误1个async错误1个call private错误

[sherlockhoatszx]

您好，mac环境

configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/c++/4.2.1 Apple LLVM version 10.0.0 (clang-1000.11.45.5) Target: x86_64-apple-darwin18.7.0 Thread model: posix InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin

报错信息：
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/thulac.h:347:42: error: a space is required between consecutive right angle brackets (use '> >') std::vector<std::future<THULAC_result>> t; ^ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/thulac.h:352:26: error: no member named 'async' in namespace 'std' t.push_back(std::async(&cut, splited[i], lac)); ~~~~~^ In file included from segtest.cpp:1: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/thulac.h:3: In file included from /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/preprocess.h:2: In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/vector:266: In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__bit_reference:15: In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/algorithm:643: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/memory:1574:36: error: calling a private constructor of class 'std::__1::future<std::__1::vector<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> > > > >' ::new ((void*)__p) _Tp(__a0); ^ /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/vector:1593:25: note: in instantiation of function template specialization 'std::__1::allocator_traits<std::__1::allocator<std::__1::future<std::__1::vector<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> > > > > > >::construct<std::__1::future<std::__1::vector<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> > > > >, std::__1::future<std::__1::vector<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> > > > > >' requested here __alloc_traits::construct(this->__alloc(), ^ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/include/thulac.h:352:11: note: in instantiation of member function 'std::__1::vector<std::__1::future<std::__1::vector<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> > > > >, std::__1::allocator<std::__1::future<std::__1::vector<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char>, std::__1::basic_string<char> > > > > > >::push_back' requested here t.push_back(std::async(&cut, splited[i], lac)); ^ /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/future:1121:5: note: declared private here future(const future&); ^ 3 errors generated.

为什么我这里会报语法错误
请问下是什么原因？是c++版本原因导致的吗？

[sherlockhoatszx]

编译的时候还会报错
warning: 'register' storage class specifier is deprecated
and incompatible with C++17 [-Wdeprecated-register]`
与C++17不兼容？请问我应该把c++设置到哪个版本呢

[sherlockhoatszx]

我尝试了指定c++14编译，错误消失。成功通过
g++ -std=c++14 seg_test.cpp

注：seg_test.cpp是我用来测试的文件