Re: [問題] 關於STL的set (已解決)

看板C_and_CPP (C/C++)作者donkeychen (Bad_To_The_Bone)時間13年前 (2013/04/18 11:03)推噓1(1推 0噓 10→)

留言11則, 3人參與討論串1/1

環境: VC 2005 大家好借標題來問個問題一樣是使用set {{MYFILE}}.H內容 struct myitem{ std::wstring a; std::wstring b; }; std::set<myitem> set_; {{MYFILE}}.CPP內容 myitem x; x.a = "a"; x.b = "b"; set_.insert(x); 有.insert的操作會產生下面的錯誤想請教一下在set內用struct需要修改什麼呢感謝 ----------- 為了不傷眼我把 C:\Program Files\Microsoft Visual Studio 8\VC 取代為{{VCPATH}} 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::stack<_Ty,_Container> &,const std::stack<_Ty,_Container> &)' : could not deduce template argument for 'const std::stack<_Ty,_Container> &' from 'const myitem' 1> {{VC_PATH}}\include\stack(90) : see declaration of 'std::operator <' 1> {{VC_PATH}}\include\functional(142) : while compiling class template member function 'bool std::less<_Ty>::operator ()(const _Ty &,const _Ty &) const' 1> with 1> [ 1> _Ty=myitem 1> ] 1> {{VC_PATH}}\include\set(60) : see reference to class template instantiation 'std::less<_Ty>' being compiled 1> with 1> [ 1> _Ty=myitem 1> ] 1> {{VC_PATH}}\include\xtree(26) : see reference to class template instantiation 'std::_Tset_traits<_Kty,_Pr,_Alloc,_Mfl>' being compiled 1> with 1> [ 1> _Kty=myitem, 1> _Pr=std::less<myitem>, 1> _Alloc=std::allocator<myitem>, 1> _Mfl=false 1> ] 1> {{VC_PATH}}\include\xtree(68) : see reference to class template instantiation 'std::_Tree_nod<_Traits>' being compiled 1> with 1> [ 1> _Traits=std::_Tset_traits<myitem,std::less<myitem>,std::allocator<myitem>,false> 1> ] 1> {{VC_PATH}}\include\xtree(94) : see reference to class template instantiation 'std::_Tree_ptr<_Traits>' being compiled 1> with 1> [ 1> _Traits=std::_Tset_traits<myitem,std::less<myitem>,std::allocator<myitem>,false> 1> ] 1> {{VC_PATH}}\include\xtree(112) : see reference to class template instantiation 'std::_Tree_val<_Traits>' being compiled 1> with 1> [ 1> _Traits=std::_Tset_traits<myitem,std::less<myitem>,std::allocator<myitem>,false> 1> ] 1> {{VC_PATH}}\include\set(69) : see reference to class template instantiation 'std::_Tree<_Traits>' being compiled 1> with 1> [ 1> _Traits=std::_Tset_traits<myitem,std::less<myitem>,std::allocator<myitem>,false> 1> ] 1> {{MYFILE}}.h(22) : see reference to class template instantiation 'std::set<_Kty>' being compiled 1> with 1> [ 1> _Kty=myitem 1> ] 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::queue<_Ty,_Container> &,const std::queue<_Ty,_Container> &)' : could not deduce template argument for 'const std::queue<_Ty,_Container> &' from 'const myitem' 1> {{VC_PATH}}\include\queue(103) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::deque<_Ty,_Alloc> &,const std::deque<_Ty,_Alloc> &)' : could not deduce template argument for 'const std::deque<_Ty,_Alloc> &' from 'const myitem' 1> {{VC_PATH}}\include\deque(1327) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::list<_Ty,_Ax> &,const std::list<_Ty,_Ax> &)' : could not deduce template argument for 'const std::list<_Ty,_Ax> &' from 'const myitem' 1> {{VC_PATH}}\include\list(1281) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::vector<_Ty,_Alloc> &,const std::vector<_Ty,_Alloc> &)' : could not deduce template argument for 'const std::vector<_Ty,_Alloc> &' from 'const myitem' 1> {{VC_PATH}}\include\vector(1276) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::basic_string<_Elem,_Traits,_Alloc> &,const _Elem *)' : could not deduce template argument for 'const std::basic_string<_Elem,_Traits,_Alloc> &' from 'const myitem' 1> {{VC_PATH}}\include\string(151) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const _Elem *,const std::basic_string<_Elem,_Traits,_Alloc> &)' : could not deduce template argument for 'const _Elem *' from 'const myitem' 1> {{VC_PATH}}\include\string(141) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::basic_string<_Elem,_Traits,_Alloc> &,const std::basic_string<_Elem,_Traits,_Alloc> &)' : could not deduce template argument for 'const std::basic_string<_Elem,_Traits,_Alloc> &' from 'const myitem' 1> {{VC_PATH}}\include\string(131) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::_Tree<_Traits> &,const std::_Tree<_Traits> &)' : could not deduce template argument for 'const std::_Tree<_Traits> &' from 'const myitem' 1> {{VC_PATH}}\include\xtree(1372) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::reverse_iterator<_RanIt> &,const std::reverse_iterator<_RanIt2> &)' : could not deduce template argument for 'const std::reverse_iterator<_RanIt> &' from 'const myitem' 1> {{VC_PATH}}\include\xutility(1880) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool std::operator <(const std::pair<_Ty1,_Ty2> &,const std::pair<_Ty1,_Ty2> &)' : could not deduce template argument for 'const std::pair<_Ty1,_Ty2> &' from 'const myitem' 1> {{VC_PATH}}\include\utility(76) : see declaration of 'std::operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool operator <(_Interface *,_com_ptr_t<_InterfacePtr> &)' : could not deduce template argument for '_Interface *' from 'const myitem' 1> {{VC_PATH}}\include\comip.h(985) : see declaration of 'operator <' 1>{{VC_PATH}}\include\functional(143) : error C2784: 'bool operator <(int,_com_ptr_t<_IIID> &)' : could not deduce template argument for '_com_ptr_t<_IIID> &' from 'const myitem' 1> {{VC_PATH}}\include\comip.h(976) : see declaration of 'operator <' 1>{{VC_PATH}}\include\functional(143) : error C2676: binary '<' : 'const myitem' does not define this operator or a conversion to a type acceptable to the predefined operator -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 211.72.248.50