質問編集履歴
1
ソースコードの追加
test
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File without changes
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test
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@@ -98,7 +98,137 @@
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呼び出し側 ( main関数等 ) での書き方です。
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-
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```C++
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#include<iostream>
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106
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using namespace std;
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109
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110
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111
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// インターフェースクラス
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class ITest{
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public:
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virtual ~ITest(){}
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virtual int func() = 0;
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};
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// 実際に使いたいクラス
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class CTest : public ITest{
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private:
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bool bCheck;
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protected:
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public:
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CTest( bool bCheck = false );
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~CTest();
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int func();
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};
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// 子クラスのコンストラクタ
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CTest::CTest( bool bCheck ){
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if( bCheck == false ) throw -1;
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this->bCheck = bCheck;
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}
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// 子クラスのデストラクタ
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CTest::~CTest(){
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cout << "Destructor" << endl;
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}
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// 子クラスのメンバ関数
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int CTest::func(){
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return 100;
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}
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// FactoryMethod を利用して 生成する関数
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ITest* CreateInstance( bool bCheck ){
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return new CTest( bCheck );
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}
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int main( int argc, char *argv[] )
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{
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ITest* obj;
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try{
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cout << 1 << endl;
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obj = CreateInstance( false );
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cout << 2 << endl;
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}catch(int n){
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cout << 3 << endl;
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delete obj; // ここで実行時エラー.
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cout << 4 << endl;
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}
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// 停止用
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getchar();getchar();
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return 0;
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}
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```
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[環境等]
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