שאלה על ה-STL של C+++
- פותח הנושא Nי cוני
- פורסם בתאריך
אתה טועה
סדר חלקי הוא רפלקסיבי, ומה שאני הגדרתי הוא אנטי-רפלקסיבי.אם הוא יהיה רפלקסיבי, אז תוכל להכניס לset שני איברים עם אותו ערך.לדוגמה:
סדר חלקי הוא רפלקסיבי, ומה שאני הגדרתי הוא אנטי-רפלקסיבי.אם הוא יהיה רפלקסיבי, אז תוכל להכניס לset שני איברים עם אותו ערך.לדוגמה:
#include <iostream> #include <set> using namespace std; class Number { public: Number(int i) : m_i(i) {} bool operator <(const Number &number) const { return m_i <= number.m_i; } private: int m_i; }; int main() { set<Number> st; st.insert(Number(1)); st.insert(Number(1)); cout << st.size() << endl; return 0; }
ידפיס 2 ולא 1 כפי שהיית מצפה.OK, סליחה. הנה כל הפרטים בצורה מלאה
ומראש תודה לכולם על העזרה: זהו הטיפוס שהפכתי ל-class כדי לכתוב לו פונקציית >: class assignment { public: assignment(); assignment(int a_var, int a_val); bool operator <(const assignment &assign) const; int a_var, a_val; }; זהו טיפוס ה-set שאני מגדירה אח"כ: typedef set < assignment > nogoods; אלה הם ה-warnings: C:\Documents and Settings\Nakar\My Documents\Liat\OpenU\àéìåöéí\îîðéí\ôøåéé÷è\v3\Queens.cpp(67) : warning C4786: 'std::reverse_bidirectional_iterator<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignmen t> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::const_iterator,assignment,assignment const &,assignment const *,int>' : identifier was truncated to '255' characters in the debug information C:\Documents and Settings\Nakar\My Documents\Liat\OpenU\àéìåöéí\îîðéí\ôøåéé÷è\v3\Queens.cpp(67) : warning C4786: 'std:
air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assig nment>,std::allocator<assignment> >::iterator,std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::iterator>' : identifier was truncated to '255' characters in the debug information C:\Documents and Settings\Nakar\My Documents\Liat\OpenU\àéìåöéí\îîðéí\ôøåéé÷è\v3\Queens.cpp(67) : warning C4786: 'std:air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assig nment>,std::allocator<assignment> >::const_iterator,std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::const_iterator>' : identifier was t runcated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(174) : warning C4786: 'std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::_Tre e<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(182) : warning C4786: 'std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::~_Tr ee<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(162) : warning C4786: 'std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::_Tre e<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(236) : warning C4786: '__ehhandler$?insert@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allocato r@Vassignment@@@4@@std@@QAE?AU?$pair@Viterator@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allocator@Vassignment@@@4@@std@@_N@2@ABVassignment@@@Z' : identi fier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(236) : warning C4786: '__unwindfunclet$?insert@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allo cator@Vassignment@@@4@@std@@QAE?AU?$pair@Viterator@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allocator@Vassignment@@@4@@std@@_N@2@ABVassignment@@@Z$0' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\utility(21) : warning C4786: 'std:air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignme nt> >::iterator,bool>:air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::iterator,bool>' : identifier was truncated to '255' charact ers in the debug information Linking... Queens.exe - 0 error(s), 9 warning(s)
ומראש תודה לכולם על העזרה: זהו הטיפוס שהפכתי ל-class כדי לכתוב לו פונקציית >: class assignment { public: assignment(); assignment(int a_var, int a_val); bool operator <(const assignment &assign) const; int a_var, a_val; }; זהו טיפוס ה-set שאני מגדירה אח"כ: typedef set < assignment > nogoods; אלה הם ה-warnings: C:\Documents and Settings\Nakar\My Documents\Liat\OpenU\àéìåöéí\îîðéí\ôøåéé÷è\v3\Queens.cpp(67) : warning C4786: 'std::reverse_bidirectional_iterator<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignmen t> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::const_iterator,assignment,assignment const &,assignment const *,int>' : identifier was truncated to '255' characters in the debug information C:\Documents and Settings\Nakar\My Documents\Liat\OpenU\àéìåöéí\îîðéí\ôøåéé÷è\v3\Queens.cpp(67) : warning C4786: 'std:
air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assig nment>,std::allocator<assignment> >::iterator,std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::iterator>' : identifier was truncated to '255' characters in the debug information C:\Documents and Settings\Nakar\My Documents\Liat\OpenU\àéìåöéí\îîðéí\ôøåéé÷è\v3\Queens.cpp(67) : warning C4786: 'std:air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assig nment>,std::allocator<assignment> >::const_iterator,std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::const_iterator>' : identifier was t runcated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(174) : warning C4786: 'std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::_Tre e<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(182) : warning C4786: 'std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::~_Tr ee<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(162) : warning C4786: 'std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::_Tre e<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(236) : warning C4786: '__ehhandler$?insert@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allocato r@Vassignment@@@4@@std@@QAE?AU?$pair@Viterator@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allocator@Vassignment@@@4@@std@@_N@2@ABVassignment@@@Z' : identi fier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\xtree(236) : warning C4786: '__unwindfunclet$?insert@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allo cator@Vassignment@@@4@@std@@QAE?AU?$pair@Viterator@?$_Tree@Vassignment@@V1@U_Kfn@?$set@Vassignment@@U?$less@Vassignment@@@std@@V?$allocator@Vassignment@@@3@@std@@U?$less@Vassignment@@@4@V?$allocator@Vassignment@@@4@@std@@_N@2@ABVassignment@@@Z$0' : identifier was truncated to '255' characters in the debug information c:\program files\microsoft visual studio\vc98\include\utility(21) : warning C4786: 'std:air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignme nt> >::iterator,bool>:air<std::_Tree<assignment,assignment,std::set<assignment,std::less<assignment>,std::allocator<assignment> >::_Kfn,std::less<assignment>,std::allocator<assignment> >::iterator,bool>' : identifier was truncated to '255' charact ers in the debug information Linking... Queens.exe - 0 error(s), 9 warning(s)
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