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POHow to implement std::set or std::hash_set to filter the duplicated item in an array list?
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3707278
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2010-09-14T08:40:55.870
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2010-09-14T08:49:49.127
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Given the below scenario, I'm having a list of item which might be having some duplicated item. I would like to filter the item, to print the only unique item. Instead of duplicating a list which remove the duplicated item, I tried to insert them into std::set and std::hash_set. Nevertheless, I found no useful example to perform the operation. Hence I hope to seek your advice on the following code: <pre><code>#include <list> //--> A struct to store software name and version typedef struct tagSWVERStruct{ TCHAR szSWName[255]; TCHAR szVersion[255]; }SWVERSIONSTRUCT, *LPSWVERSIONSTRUCT; //--> A list of struct to store software name and version typedef std::list<SWVERSIONSTRUCT> LISTSWVERSION, *PLISTSWVERSION; void main() { LISTSWVERSION swList; SWVERSIONSTRUCT svSW1, svSW2, svSW3, svSW4; CString szVersion, szName; //Assign value _tcscpy_s(svSW1.szSWName, _T("Adapter 1")); _tcscpy_s(svSW2.szSWName, _T("Adapter 2")); _tcscpy_s(svSW3.szSWName, _T("Adapter 1")); _tcscpy_s(svSW4.szSWName, _T("Adapter 3")); _tcscpy_s(svSW1.szVersion, _T("1.0.0")); _tcscpy_s(svSW2.szVersion, _T("2.0.0")); _tcscpy_s(svSW3.szVersion, _T("1.0.0")); _tcscpy_s(svSW4.szVersion, _T("3.0.0")); swList.push_back(svSW1); swList.push_back(svSW2); swList.push_back(svSW3); swList.push_back(svSW4); //print all the item out LISTSWVERSION::iterator it = swList.begin(); for(; it!=swList.end(); ++it){ _tprintf(_T("%s version = %s\n"), (*it).szSWName, (*it).szVersion); } } /******* Output: Adapter 1 version = 1.0.0 Adapter 2 version = 2.0.0 Adapter 1 version = 1.0.0 Adapter 3 version = 3.0.0 Expected Output: Adapter 1 version = 1.0.0 Adapter 2 version = 2.0.0 Adapter 3 version = 3.0.0 ********/ </code></pre>
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How to implement std::set or std::hash_set to filter the duplicated item in an array list?
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