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[5442] | 1 | // This example illustrates the basic use of
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| 2 | // try, catch, and throw.
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| 3 |
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| 4 | #include <iostream.h>
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| 5 | #include <stdlib.h>
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| 6 | class IsZero { /* ... */ };
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| 7 | void ZeroCheck( int i )
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| 8 | {
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| 9 | if (i==0)
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| 10 | throw IsZero();
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| 11 | }
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| 12 | void main()
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| 13 | {
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| 14 | double a;
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| 15 |
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| 16 | cout << "Enter a number: ";
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| 17 | cin >> a;
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| 18 | try
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| 19 | {
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| 20 | ZeroCheck( a );
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| 21 | cout << "Reciprocal is " << 1.0/a << endl;
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| 22 | }
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| 23 | catch ( IsZero )
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| 24 | {
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| 25 | cout << "Zero input is not valid" << endl;
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| 26 | }
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| 27 | cout << "Finished." << endl;
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| 28 | }
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