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LW4: Class Template. Parametrize BookItem with a String type.

This commit is contained in:
Kolan Sh 2021-03-28 23:03:38 +03:00
parent ca3125dbd4
commit 581d21007a
2 changed files with 17 additions and 16 deletions
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12
phoebook/CBookItems.cpp
View File

@ -8,7 +8,7 @@ void CBookItems::CreateNewItem(string sFirstName, string sLastName, string sPhon
void CBookItems::CreateNewItem(string sFirstName, string sLastName, string sPhoneNumber1, string sPhoneNumber2) void CBookItems::CreateNewItem(string sFirstName, string sLastName, string sPhoneNumber1, string sPhoneNumber2)
{ {
BookItem* spaceItem = new BookItem; BookItem<string>* spaceItem = new BookItem<string>;
spaceItem->_sFirstName = sFirstName; spaceItem->_sFirstName = sFirstName;
spaceItem->_sLastName = sLastName; spaceItem->_sLastName = sLastName;
spaceItem->_sPhoneNumber1 = sPhoneNumber1; spaceItem->_sPhoneNumber1 = sPhoneNumber1;
@ -33,7 +33,7 @@ int CBookItems::SetNewValueToItem(string sFirstName, string sLastName, string sP
{ {
if (nNumOfItem == i) if (nNumOfItem == i)
{ {
BookItem spaceItem; BookItem<string> spaceItem;
spaceItem._sFirstName = sFirstName; spaceItem._sFirstName = sFirstName;
spaceItem._sLastName = sLastName; spaceItem._sLastName = sLastName;
spaceItem._sPhoneNumber1 = sPhoneNumber1; spaceItem._sPhoneNumber1 = sPhoneNumber1;
@ -72,9 +72,9 @@ int CBookItems::GetItem(int nNumOfItem, string& sFirstName, string& sLastName, s
} }
} }
const CBookItems::BookItem& CBookItems::GetItem(int nNumOfItem) const CBookItems::BookItem<string>& CBookItems::GetItem(int nNumOfItem)
{ {
if (nNumOfItem < 0 || nNumOfItem > _aItems.size()) return CBookItems::BookItem(); if (nNumOfItem < 0 || nNumOfItem > _aItems.size()) return CBookItems::BookItem<string>();
return _aItems[nNumOfItem]; return _aItems[nNumOfItem];
} }
@ -309,7 +309,7 @@ int CBookItems::LoadItems(string sNameOfFile)
} }
std::ostream& operator<<(std::ostream& s, const CBookItems::BookItem& item) std::ostream& operator<<(std::ostream& s, const CBookItems::BookItem<string>& item)
{ {
s << item._sFirstName << " " << item._sLastName << ": " << item._sPhoneNumber1; s << item._sFirstName << " " << item._sLastName << ": " << item._sPhoneNumber1;
if (item._sPhoneNumber2 != "") if (item._sPhoneNumber2 != "")
@ -318,7 +318,7 @@ std::ostream& operator<<(std::ostream& s, const CBookItems::BookItem& item)
return s; return s;
} }
std::istream& operator>>(std::istream& s, CBookItems::BookItem& item) std::istream& operator>>(std::istream& s, CBookItems::BookItem<string>& item)
{ {
s >> item._sFirstName >> item._sLastName >> item._sPhoneNumber1 >> item._sPhoneNumber2; s >> item._sFirstName >> item._sLastName >> item._sPhoneNumber1 >> item._sPhoneNumber2;
return s; return s;

21
phoebook/CBookItems.h
View File

@ -20,18 +20,19 @@ using namespace std;
class CBookItems class CBookItems
{ {
public: public:
struct BookItem template<class T>
class BookItem
{ {
private: private:
string _sFirstName; T _sFirstName;
string _sLastName; T _sLastName;
string _sPhoneNumber1; T _sPhoneNumber1;
string _sPhoneNumber2; T _sPhoneNumber2;
public: public:
BookItem() BookItem()
{ {
} }
~BookItem() virtual ~BookItem()
{ {
} }
@ -39,13 +40,13 @@ public:
/** /**
*Переопределяет операторы вывода/вывода *Переопределяет операторы вывода/вывода
*/ */
friend std::ostream& operator<<(std::ostream& s, const BookItem& item); friend std::ostream& operator<<(std::ostream& s, const BookItem<string>& item);
friend std::istream& operator>>(std::istream& s, BookItem& item); friend std::istream& operator>>(std::istream& s, BookItem<string>& item);
friend CBookItems; friend CBookItems;
}; };
vector<BookItem> _aItems; vector<BookItem<string> > _aItems;
public: public:
@ -89,7 +90,7 @@ public:
/** /**
*Возвращает элемент телефонного справочника *Возвращает элемент телефонного справочника
*/ */
const BookItem& GetItem(int nNumOfItem); const BookItem<string>& GetItem(int nNumOfItem);
//=============================================================================== //===============================================================================
/** /**