“use of deleted function”错误的含义 在C++中,“use of deleted function”错误表示你尝试调用了一个已被编译器删除的函数。通常,这是因为函数不符合某些条件,比如拷贝构造函数或赋值操作符被删除,或者函数被声明为= delete。 可能导致该错误的常见情况 拷贝构造函数或赋值操作符被删除:当类中定义了移动构造函数或...
error: use of deleted function ‘std::pair<constint,int>& std::pair<constint,int>::operator=(conststd::pair<constint,int>&)’ c[0] = std::make_pair(1,1); ^ note: ‘std::pair<constint,int>& std::pair<constint,int>::operator=(conststd::pair<constint,int>&)’ is implicitly...
error: use of deleted function ‘std::pair<const int, int>& std::pair<const int, int>::operator=(const std::pair<const int, int>&)’ c[0] = std::make_pair(1, 1); ^ note: ‘std::pair<const int, int>& std::pair<const int, int>::operator=(const std::pair<const int, i...
8.operator delete class DataOnly { public: DataOnly () // default constructor ~DataOnly () // destructor DataOnly (const DataOnly & rhs) // copy constructor DataOnly & operator=(const DataOnly & rhs) // copy assignment operator DataOnly (const DataOnly && rhs) // C++11, move constru...
C++ error: use of deleted function 问题# 使用traits接收来自中间件的变量,调用拷贝构造函数时提示use of deleted function错误。 解释# 仔细检查对应类中定义了移动构造函数,而没有显式定义拷贝构造函数。而问题就出在这: If the class definition does not explicitly declare a copy constructor, one is ...
This is marked as "error: use of deleted function 'constexpr Complex::Complex(const Complex&)' Complex Complex::squared(Complex &c) {return c.squared(); }" I have tried to define 12345 constexpr Complex& operator=(const Complex &other) const { m_x = other.x(); m_iy = other.iy...
/root/Downloads/veyon-3.99.6/core/include/Feature.h:35:25: error: use of deleted function 'QObject& QObject::operator=(const QObject&)' class VEYON_CORE_EXPORT Feature : public QObject ^~~~ In file included from /usr/include/qt5/QtCore/qcoreapplication.h:43:0, from /usr/include...
use of deleted function ‘std::__cxx11::basic_stringstream<_CharT, _Traits, _Alloc>& std::__cxx11::basic_stringstream<_CharT, _Traits, _Alloc>::operator=(const std::__cxx11::basic_stringstream<_CharT, _Traits, _Alloc>&) [with _CharT = char; _Traits = std::char_traits<char>; ...
Use of deleted function unique_ptr::unique_ptr Sep 18, 2013 at 1:49am ThemePark (28) I have the following header and class file in a project: 123456789101112131415161718 #ifndef PATTERN_HPP_ #define PATTERN_HPP_ #include <memory> #include <list> using namespace std; namespace pub { ...
std_function.h:684:25: note: initializing argument 1 of ‘_Res std::function<_Res(_ArgTypes ...)>::operator()(_ArgTypes ...) const [with _Res = std::unique_ptr<BarImpl>; _ArgTypes = {std::unique_ptr<Qux, std::default_delete<Qux> >}]’ 684 | operator()(_ArgTypes... _...