C++ Library containing a lot of needful things: Stack Trace, Command Line Parser, Resource Handling, Configuration Files, Unix Command Execution, Directories, Regular Expressions, Tokenizer, Function Trace, Standard Extensions.
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21 years ago
#include <mrw/smartpointer.hpp>
class A {
public: int a;
protected: virtual void fn() {} // dynamic_cast requires a virtual function
};
class B: virtual public A {
public: int b;
};
int main(int, char**) {
utl::SmartPointer<int> i1 = new int;
*i1 = 13;
utl::SmartPointer<int> i2 = i1;
utl::SmartPointer<int> i3;
if (!i3) i3 = i2;
*i2 = 666; // *i1 is now 666 too
utl::SmartPointer<A> b1 = new B;
utl::SmartPointer<B> b2 = b1; // b1 and b2 point to the same instance
b1->a = 0; // b1->b does not compile
b2->a = 1;
b2->b = 2;
return 0;
} // memory is automatically freed