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#include <cstdio> #include <String> template <typename T> class container { public: container(std::string in_key="") { m_element_index = 0; } ~container() { } // Returns the numbers of elements in the container int size() { return m_element_index; } // Assignment operator // Assigns a copy of container x as the new content for the container object. container& operator= (const container& other) { if (this != &other) { for ( int idx = 0; idx < other.size(); idx++) { } } return *this; } private: int m_element_index; }; int main ( int argc,char** argv) { container<int> v1("my_container"); container<int> v2("copy_cont"); v2 = v1; }
for(int idx = 0; idx< other.size(); idX){ 错误是
1>------ Build started: Project: test,Configuration: Debug Win32 ------ 1> test.cpp 1>e:\avinash\test\test\test.cpp(20): error C2662: 'container<T>::size' : cAnnot convert 'this' pointer from 'const container<T>' to 'container<T> &' 1> with 1> [ 1> T=int 1> ] 1> Conversion loses qualifiers 1> e:\avinash\test\test\test.cpp(18) : while compiling class template member function 'container<T> &container<T>::operator =(const container<T> &)' 1> with 1> [ 1> T=int 1> ] 1> e:\avinash\test\test\test.cpp(30) : see reference to class template instantiation 'container<T>' being compiled 1> with 1> [ 1> T=int 1> ] ========== Build: 0 succeeded,1 Failed,0 up-to-date,0 skipped ==========
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