63 lines
1.3 KiB
C++
63 lines
1.3 KiB
C++
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// twotemps.cpp -- using overloaded template functions
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#include <iostream>
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template <typename T> // original template
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void Swap(T &a, T &b);
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template <typename T> // new template
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void Swap(T *a, T *b, int n);
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void Show(int a[]);
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const int Lim = 8;
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int main()
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{
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using namespace std;
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int i = 10, j = 20;
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cout << "i, j = " << i << ", " << j << ".\n";
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cout << "Using compiler-generated int swapper:\n";
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Swap(i,j); // matches original template
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cout << "Now i, j = " << i << ", " << j << ".\n";
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int d1[Lim] = {0,7,0,4,1,7,7,6};
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int d2[Lim] = {0,7,2,0,1,9,6,9};
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cout << "Original arrays:\n";
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Show(d1);
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Show(d2);
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Swap(d1,d2,Lim); // matches new template
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cout << "Swapped arrays:\n";
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Show(d1);
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Show(d2);
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// cin.get();
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return 0;
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}
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template <typename T>
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void Swap(T &a, T &b)
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{
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T temp;
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temp = a;
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a = b;
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b = temp;
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}
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template <typename T>
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void Swap(T a[], T b[], int n)
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{
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T temp;
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for (int i = 0; i < n; i++)
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{
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temp = a[i];
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a[i] = b[i];
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b[i] = temp;
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}
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}
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void Show(int a[])
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{
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using namespace std;
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cout << a[0] << a[1] << "/";
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cout << a[2] << a[3] << "/";
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for (int i = 4; i < Lim; i++)
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cout << a[i];
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cout << endl;
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}
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