25 lines
704 B
C++
25 lines
704 B
C++
// pointer.cpp -- our first pointer variable
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#include <iostream>
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int main()
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{
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using namespace std;
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int updates = 6; // declare a variable
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int * p_updates; // declare pointer to an int
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p_updates = &updates; // assign address of int to pointer
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// express values two ways
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cout << "Values: updates = " << updates;
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cout << ", *p_updates = " << *p_updates << endl;
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// express address two ways
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cout << "Addresses: &updates = " << &updates;
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cout << ", p_updates = " << p_updates << endl;
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// use pointer to change value
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*p_updates = *p_updates + 1;
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cout << "Now updates = " << updates << endl;
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// cin.get();
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return 0;
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}
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