- #include <iostream> 
- #include <limits> 
- using namespace std; 
-   
- int main() { 
- 	double inf = std::numeric_limits<double>::infinity(); 
- 	cout << "infinity = " << inf << "\n"; 
- 	cout << "-infinity = " << -inf << "\n"; 
- 	cout << "infinity * -1.0 = " << inf * -1.0 << "\n"; 
- 	return 0; 
- } 
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