Last change
on this file since 1199:19eae67d97d5 was
1157:3996d2098090,
checked in by Mihaly Barasz, 19 years ago
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lemon/error.h: boost::shared_ptr helyett std::auto_ptr
(Sokkal kenylemetlenebb, es nem teljesen biztos, hogy helyes megoldas)
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File size:
896 bytes
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Rev | Line | |
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[1157] | 1 | #include <iostream> |
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| 2 | #include <memory> |
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| 3 | |
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| 4 | #include <boost/shared_ptr.hpp> |
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| 5 | |
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| 6 | using namespace std; |
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| 7 | |
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| 8 | class Ex : public exception { |
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| 9 | |
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| 10 | typedef exception Parent; |
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| 11 | |
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| 12 | mutable |
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| 13 | auto_ptr<string> uz; |
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| 14 | public: |
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| 15 | |
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| 16 | // boost::shared_ptr<string> uz; |
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| 17 | |
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| 18 | Ex(const Ex &e) : Parent(e), uz(e.uz) {} |
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| 19 | |
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| 20 | explicit |
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| 21 | Ex(const char *msg = 0) { |
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| 22 | if( msg ) { |
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| 23 | try { |
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| 24 | uz.reset(new string); |
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| 25 | *uz = msg; |
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| 26 | } |
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| 27 | catch(...) { |
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| 28 | uz.reset(); |
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| 29 | } |
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| 30 | } |
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| 31 | } |
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| 32 | |
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| 33 | virtual |
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| 34 | const char* what() const throw() { |
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| 35 | if( uz.get() ) |
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| 36 | return uz->c_str(); |
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| 37 | return "Kivetel"; |
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| 38 | } |
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| 39 | |
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| 40 | virtual ~Ex() throw() {} |
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| 41 | }; |
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| 42 | |
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| 43 | static void fn1() { |
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| 44 | Ex e("alma"); |
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| 45 | throw e; |
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| 46 | } |
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| 47 | |
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| 48 | static |
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| 49 | void fn2() { |
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| 50 | throw Ex("korte"); |
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| 51 | } |
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| 52 | |
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| 53 | int main() { |
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| 54 | try { |
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| 55 | fn1(); |
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| 56 | } |
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| 57 | catch(exception const &e) { |
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| 58 | cerr << "Hiba: " << e.what() << endl; |
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| 59 | } |
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| 60 | |
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| 61 | try { |
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| 62 | fn2(); |
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| 63 | } |
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| 64 | catch(exception const &e) { |
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| 65 | cerr << "Hiba: " << e.what() << endl; |
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| 66 | } |
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| 67 | |
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| 68 | } |
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