c++ main() brain teaser

Can you think of a situ开发者_如何学Goation where your program would crash without reaching the breakpoint which you set at the beginning of main()?

My answer is during the initialization of static variables, but not sure...

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THe above examples are true, but in my experience it's usually due to some problem loading a DLL...

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A very simple example

struct abc
{
   abc()
   {
       int* p = 0;
       *p = 42; // Drat!
   }
};

abc obj;
int main(){}

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My answer gives 100% guarantee that this will crash before main().

#include <exception>

struct A
{
   A() 
   {
       std::terminate(); //from <exception>
       //you can also call std::abort() from <cstdlib>
   }
};
A a;

int main(){}

Demo : http://www.ideone.com/JIhcz

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Another solution:

struct A
{
   A() 
   {
       throw "none";
   }
};
A a;

int main(){}

Demo : http://www.ideone.com/daaMe