Hi Hannan, Your code is creating a new variable named occ_sign_change in the body of the constructor, but that variable has nothing to do with the member variable this.occ_sign_change. HTH, Ron On Jan 12, 2010, at 3:59 PM, Hannan Sadar wrote:

Hi to all,

i wrote a class (Influx), where i try to define there a boost::multi_arry occ_sign_change. Once i tried in Influx::Influx to write: occ_sign_change = vec::uint32_1d_t ( boost::extents[ num_elements ] ); i was able to compile, but at run time i got the following error: randum.rc3_64: /usr/include/boost/multi_array/multi_array_ref.hpp: 487: boost::multi_array_ref& boost::multi_array_ref::operator=(const ConstMultiArray&) [with ConstMultiArray = boost::multi_array

...

, T = unsigned int, long unsigned int NumDims = 1ul]: Assertion `std::equal(other.shape(),other.shape()+this->num_dimensions(), this- shape())' failed.

that is why i rewrote the above line as following: vec::uint32_1d_t occ_sign_change ( boost::extents[ num_elements ] );

but now, when i call for the size of occ_sign_change in Influx::Clean, i get that the size is zero.

how could i solve this problem?

regards

#include #include #include "randum.rc3.hpp"

namespace vec { typedef boost::multi_array< uint32_t , 1> uint32_1d_t; typedef boost::multi_array< uint32_t , 2> uint32_2d_t; typedef boost::multi_array< uint32_t , 3> uint32_3d_t; typedef boost::multi_array< uint32_t , 1> uint32_1d_t; typedef boost::multi_array< uint32_t , 2> uint32_2d_t; typedef boost::multi_array< double , 1> double_1d_t; typedef boost::multi_array< double , 2> double_2d_t; typedef uint32_1d_t::index index_t; }

class Influx { public: Influx ( uint32_t num_elements , double p_, double kappa_ , vec::uint32_2d_t *Pointer_ , threshold_t threshold_ , uint32_t num_bits , uint16_t max_runs_ ); void Update (); void Validity ( const uint32_t i ); void Clean( uint32_t run ); boost::dynamic_bitset<> occupied; vec::uint32_1d_t occupied_counter; vec::uint32_1d_t num_neighbours; vec::uint32_1d_t occ_sign_change;

private: std::vector< uint32_t > remove_node_v; vec::uint32_2d_t *Pointer; std::vector< uint32_t > num_neighbours_epoch; double p; double kappa; threshold_t threshold; uint16_t max_runs; uint32_t bits_mask; uint32_t complement_num;

};

Influx::Influx ( uint32_t num_elements , double p_, double kappa_ , vec::uint32_2d_t *Pointer_ , threshold_t threshold_ , uint32_t num_bits , uint16_t max_runs_ ) { bits_mask = ( 1 << num_bits ) - 1; Pointer = Pointer_; p = p_; kappa = kappa_; threshold = threshold_; max_runs = max_runs_; complement_num = 0;

num_neighbours_epoch = std::vector< uint32_t > ( num_elements , 0); occupied = boost::dynamic_bitset<> ( num_elements , 0 ); // all 0's by default vec::uint32_1d_t occupied_counter ( boost::extents[ num_elements ] ); vec::uint32_1d_t occ_sign_change ( boost::extents[ num_elements ] ); vec::uint32_1d_t num_neighbours ( boost::extents[ num_elements ] ); remove_node_v.reserve( num_elements ); std::fill_n( occupied_counter.begin() , occupied_counter.num_elements() , 0 ); std::fill_n( occ_sign_change.begin() , occ_sign_change.num_elements() , 0 ); std::fill_n( num_neighbours.origin() , num_neighbours.num_elements() , 0 );

}

void Influx::Clean ( uint32_t run ) {

for ( vec::uint32_1d_t::size_type i = 0 ; i < remove_node_v.size() ; i++ ) { occupied[ remove_node_v[i] ] = 0; if ( run >= max_runs ) { std::cout << "size occ_sign_change: " << occ_sign_change.size() << std::endl; occ_sign_change[ remove_node_v[i] ]++; } }

remove_node_v.clear();

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