Re: [Boost-users] Converting loop to using boost::lambda where containers has boost::shared_ptrs

Ovanes, I know about the /ZmXXX compiler option. Usually the compiler will report when it's running out of heap space. But in this case the compiler just crashes. This is very simple example that crashes the compiler. #include <iostream> #include <string> #include <vector> #include #include void print( const std::string* s ) { std::cout << s; } int main ( int, char** ) { typedef boost::shared_ptrstd::string string_ptr_t; typedef std::vector < string_ptr_t > vec_t; vec_t data; // this works boost::bind( &print , boost::bind( &string_ptr_t::get , string_ptr_t( new std::string( "Hello" ))))(); // this doesn't work - ICE std::for_each ( data.begin(), data.end(), boost::bind( &print , boost::bind( &string_ptr_t::get , boost::bind::_1 ))); return 0; } On 5/20/07, Ovanes Markarian wrote:

Christian,

Can you please specify what happens when the compiler crashes? There is a known issue that template intensive code can crash the VC compiler, to resolve it, you can increase the memory heap size used by VC internally. You may read more on it at:

http://www.boost.org/doc/html/variant/misc.html#variant.troubleshooting

This is not only boost::variant issue and can happen in other libraries as well.

Best Regards, Ovanes

-----Ursprüngliche Nachricht----- Von: Christian Henning [mailto:chhenning@gmail.com] Gesendet: Sonntag, 20. Mai 2007 00:41 An: boost-users@lists.boost.org Betreff: Re: [Boost-users] Converting loop to using boost::lambda where containers has boost::shared_ptrs

...

I am glad to know I still the have skill of breaking compilers. :)

Well, I seem to have similar skills. The code below crashes my compiler ( VC7.1 SP 1), as well.

void print( const std::string& s ) { std::cout << s; }

int main ( int, char** ) { typedef boost::shared_ptr<A> A_ptr_t; typedef boost::shared_ptr<D> D_ptr_t;

typedef std::vector < boost::shared_ptr<Base> > Data_t; Data_t m_data;

A_ptr_t a ( new A ( 50 ) ); D_ptr_t d ( new D ( 30 ) );

m_data.push_back ( a ); m_data.push_back ( d );

boost::uint32_t indent_value = 4;

// this works boost::bind( &print , boost::bind( &Base::to_String , A_ptr_t( new A( 5 ) ) , indent_value ))();

// this doesn't work - ICE std::for_each ( m_data.begin(), m_data.end(), boost::bind( &print , boost::bind( &Base::to_String , boost::bind::_1 , indent_value )));

return 0; }

I know this is not the solution. I'm still using a seperate function print() for outputting. I will keep trying to solve that one.

On the other hand it would be nice if boost::bind comes some handy function like the print(). Just a thought.

Christian _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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