в 14:21, 25 мая 2010

2010-05-25T14:21:17Z

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2010-05-25T10:29:45Z

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==Using pointers with const methods==

<source lang="cpp">#include <iostream>

class Rectangle
{
public:
Rectangle();
~Rectangle();
void SetLength(int length) { itsLength = length; }
int GetLength() const { return itsLength; }

void SetWidth(int width) { itsWidth = width; }
int GetWidth() const { return itsWidth; }

private:
int itsLength;
int itsWidth;
};

Rectangle::Rectangle(): itsWidth(5), itsLength(10) {}

Rectangle::~Rectangle()
{}

int main()
{
Rectangle* pRect = new Rectangle;
const Rectangle * pConstRect = new Rectangle;
Rectangle * const pConstPtr = new Rectangle;

std::cout << "pRect width: " << pRect->GetWidth() << " feet\n";
std::cout << "pConstRect width: " << pConstRect->GetWidth() << " feet\n";
std::cout << "pConstPtr width: " << pConstPtr->GetWidth() << " feet\n";

pRect->SetWidth(10);
pConstPtr->SetWidth(10);

std::cout << "pRect width: " << pRect->GetWidth() << " feet\n";
std::cout << "pConstRect width: " << pConstRect->GetWidth() << " feet\n";
std::cout << "pConstPtr width: " << pConstPtr->GetWidth() << " feet\n";
return 0;
}</source>
<pre class=codeResult>pRect width: 5 feet
pConstRect width: 5 feet
pConstPtr width: 5 feet
pRect width: 10 feet
pConstRect width: 5 feet
pConstPtr width: 10 feet</pre>

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в 14:21, 25 мая 2010

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