记录一次在cpp群里面的讨论过程。 首先是有人提出,没出C++11里面没有make-unique。Why does C++11 have `make_shared` but not `make_unique`。 答案忘记了。 然后就是老生常谈的,为什么需要make-unique,因为异常安全 。 之前的一些文章也有说过严格鸽:现代C++学习——更好的单例模式 Exception safety and mak...
make_unique is not part of C++11 but c++14. See: http://en.cppreference.com/w/cpp/memory/unique_ptr/make_unique Jan 20, 2015 at 7:39pm mutexe(2372) Balls. My mistake sorry. Jan 20, 2015 at 7:43pm closed account (SECMoG1T) ...
make_unique()是C++14引入的功能,但是可以广泛使用(也很容易自己写一个) Enforcement(实施建议) (Simple) Warn if a unique_ptr is constructed from the result of new rather than make_unique. (简单)如果unique_ptr从new得到的结果构建而不是使用make_uinque,报警。 原文链接 https://github.com/isocpp/...
Flag variables declared to be unique_ptr<Foo> 提示使用unique_ptr定义变量的情况。 原文链接: https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#c150-use-make_unique-to-construct-objects-owned-by-unique_ptrs 觉得本文有帮助?请分享给更多人。 关注【面向对象思考】轻松学习每一...
template< class T > unique_ptr<T> make_unique( std::size_t size ); (2) (since C++14)(only for array types with unknown bound) template< class T, class... Args > /* unspecified */ make_unique( Args&&... args ) = delete; (3) (since C++14)(only for array types with known...
/usr/bin/ld: ../builds/Debug-x86_64/engine/libengine.a(app.o): in function `std::_MakeUniq<Engine::Profiler>::__single_object std::make_unique<Engine::Profiler>()': /usr/include/c++/9/bits/unique_ptr.h:857: undefined reference to `Engine::Profiler::Profiler()'/usr/bin/ld: .....
type().name() << "\"\n"; // any_cast casts to <void(void)> but actual type is not // a std::function..., but ~ main::{lambda()#1}, and it is // unique for each lambda. So, this throws... try { std::any_cast<lambda>(a2)(); } catch (std::bad_any_cast const&...
is it possible to make_unique an abstract class ? i.e 12 //A is an abstract class std::unique_ptr a = std::make_unique< A >( A ); note : What I am trying to do is make a class group of SFML's drawables...this is the problem that I am facing thus far, because sf::Dra...
2019-11-13 09:41 −centos上编译报错,部分信息如下: /usr/local/lib/libprotobuf.so.9: undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::a... luku 0 30087 C++11 std::unique_lock与std::lock_guard区别及多线程应用实例 ...
�_bk;t=1727545482016�LLVMProfileData.lib(MemProfReader.cpp.obj) : error LNK2019: unresolved external symbol "public: static class llvm::Expected<class std::unique_ptr<class llvm::symbolize::SymbolizableObjectFile,struct std::default_delete > > __cdecl llvm::symbolize::SymbolizableObjectFil...