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Jack Nguyen

16 Jun 2005 16 Jun '05

10:12 p.m.

I currently have template <typename T> class Vector { private: int Size; boost::shared_array<T> mpD; void VecAlloc( int size) { boost::shared_array<T> mpD_temp(new T[size]); mpD=mpD_temp; } public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } } My question is how do i get rid of boost::shared_array<T> mpD_temp(new T[size]); ???

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Cory Nelson

17 Jun 17 Jun

12:26 a.m.

mpD=boost::shared_array<T>(new T[size]); On 6/16/05, Jack Nguyen wrote:

I currently have

template <typename T> class Vector { private: int Size; boost::shared_array<T> mpD;

void VecAlloc( int size) {

boost::shared_array<T> mpD_temp(new T[size]); mpD=mpD_temp; }

public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } }

My question is how do i get rid of boost::shared_array<T> mpD_temp(new T[size]); ???

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-- Cory Nelson http://www.int64.org

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Jack Nguyen

3:59 p.m.

I m trying to build a matrix and m having compile error w/ thei following codes mpD=boost::shared_array(new boost::shared_array<T>[cols]); mpD[0]=boost::shared_array<T>(new T[rows*cols]); for (int i=1; i wrote:

mpD=boost::shared_array<T>(new T[size]);

On 6/16/05, Jack Nguyen wrote:

...
I currently have

template <typename T> class Vector { private: int Size; boost::shared_array<T> mpD;

void VecAlloc( int size) {

boost::shared_array<T> mpD_temp(new T[size]); mpD=mpD_temp; }

public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } }

My question is how do i get rid of boost::shared_array<T> mpD_temp(new T[size]); ???

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-- Cory Nelson http://www.int64.org

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pankaj jain

5:36 p.m.

New subject: Boost.python Question

Do we have dedicated mailing list for boost.python. please give me the information. thanks Jack Nguyen wrote: I m trying to build a matrix and m having compile error w/ thei following codes mpD=boost::shared_array >(new boost::shared_array[cols]); mpD[0]=boost::shared_array(new T[rows*cols]); for (int i=1; i mpD[i]=mpD[0]+i*rows; Seems like there s no match for operator+ Regards, On 6/16/05, Cory Nelson wrote:

mpD=boost::shared_array(new T[size]);

On 6/16/05, Jack Nguyen wrote:

...
I currently have

template class Vector { private: int Size; boost::shared_array mpD;

void VecAlloc( int size) {

boost::shared_array mpD_temp(new T[size]); mpD=mpD_temp; }

public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } }

My question is how do i get rid of boost::shared_array mpD_temp(new T[size]); ???

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-- Cory Nelson http://www.int64.org

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Doug Henry

5:45 p.m.

It is really hard to tell what you are trying to do from this example. Could you provide an example or description (not necessarily code) of what your matrix structure should look like. On 6/17/05, Jack Nguyen wrote:

I m trying to build a matrix and m having compile error w/ thei following codes mpD=boost::shared_array(new boost::shared_array<T>[cols]); mpD[0]=boost::shared_array<T>(new T[rows*cols]); for (int i=1; i
On 6/16/05, Cory Nelson wrote:

...
mpD=boost::shared_array<T>(new T[size]);

On 6/16/05, Jack Nguyen wrote:

...
I currently have

template <typename T> class Vector { private: int Size; boost::shared_array<T> mpD;

void VecAlloc( int size) {

boost::shared_array<T> mpD_temp(new T[size]); mpD=mpD_temp; }

public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } }

My question is how do i get rid of boost::shared_array<T> mpD_temp(new T[size]); ???

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

-- Cory Nelson http://www.int64.org

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

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Jack Nguyen

6:19 p.m.

Its a matrix constructor using pointer indirection. User can then do Matrix<double> M(3,4)//; and 2 arrays will be created, array1 of type *T, size 4 and array2 of type T, size 3*4. array1[0] points to array2[0], array1[1] points to array2[3] so on and so forth. I m having syntax trouble accomplishing the "array1[1] points to array2[3]" part! On 6/17/05, Doug Henry wrote:

It is really hard to tell what you are trying to do from this example. Could you provide an example or description (not necessarily code) of what your matrix structure should look like.

On 6/17/05, Jack Nguyen wrote:

...
I m trying to build a matrix and m having compile error w/ thei following

codes

...
mpD=boost::shared_array
On 6/16/05, Cory Nelson wrote:

...
mpD=boost::shared_array<T>(new T[size]);

On 6/16/05, Jack Nguyen wrote:

...
I currently have

template <typename T> class Vector { private: int Size; boost::shared_array<T> mpD;

void VecAlloc( int size) {

boost::shared_array<T> mpD_temp(new T[size]); mpD=mpD_temp; }

public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } }

My question is how do i get rid of boost::shared_array<T> mpD_temp(new T[size]); ???

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org

http://lists.boost.org/mailman/listinfo.cgi/boost-users

...
...
...
-- Cory Nelson http://www.int64.org

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

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

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Jack Nguyen

11:05 p.m.

Another related question: How do I refer to a subpart of an array pointed to by shared_array. I tried subptr=boost::shared_array<T>(ptr.get()+offset); but this leaves me w/ dangling ptr problem :( Any suggestion??? On 6/17/05, Jack Nguyen wrote:

Its a matrix constructor using pointer indirection. User can then do Matrix<double> M(3,4)//; and 2 arrays will be created, array1 of type *T, size 4 and array2 of type T, size 3*4. array1[0] points to array2[0], array1[1] points to array2[3] so on and so forth. I m having syntax trouble accomplishing the "array1[1] points to array2[3]" part!

On 6/17/05, Doug Henry wrote:

...
It is really hard to tell what you are trying to do from this example. Could you provide an example or description (not necessarily code) of what your matrix structure should look like.

On 6/17/05, Jack Nguyen wrote:

...
I m trying to build a matrix and m having compile error w/ thei following

codes

...
mpD=boost::shared_array
On 6/16/05, Cory Nelson wrote:

...
mpD=boost::shared_array<T>(new T[size]);

On 6/16/05, Jack Nguyen wrote:

...
I currently have

template <typename T> class Vector { private: int Size; boost::shared_array<T> mpD;

void VecAlloc( int size) {

boost::shared_array<T> mpD_temp(new T[size]); mpD=mpD_temp; }

public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } }

My question is how do i get rid of boost::shared_array<T> mpD_temp(new T[size]); ???

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org

http://lists.boost.org/mailman/listinfo.cgi/boost-users

...
...
...
-- Cory Nelson http://www.int64.org

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

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

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Doug Henry

18 Jun 18 Jun

1:38 p.m.

It's possible weak_ptr could be used for that, but I have never used it for that purpose. Have you checked out the boost multi_array? It seems that container is very similar to the one your creating. On 6/17/05, Jack Nguyen wrote:

Another related question: How do I refer to a subpart of an array pointed to by shared_array. I tried subptr=boost::shared_array<T>(ptr.get()+offset); but this leaves me w/ dangling ptr problem :( Any suggestion???

On 6/17/05, Jack Nguyen wrote:

...
Its a matrix constructor using pointer indirection. User can then do Matrix<double> M(3,4)//; and 2 arrays will be created, array1 of type *T, size 4 and array2 of type T, size 3*4. array1[0] points to array2[0], array1[1] points to array2[3] so on and so forth. I m having syntax trouble accomplishing the "array1[1] points to array2[3]" part!

On 6/17/05, Doug Henry wrote:

...
It is really hard to tell what you are trying to do from this example. Could you provide an example or description (not necessarily code) of what your matrix structure should look like.

On 6/17/05, Jack Nguyen wrote:

...
I m trying to build a matrix and m having compile error w/ thei

following codes

...
mpD=boost::shared_array
On 6/16/05, Cory Nelson wrote:

...
mpD=boost::shared_array<T>(new T[size]);

On 6/16/05, Jack Nguyen wrote:

...
I currently have

template <typename T> class Vector { private: int Size; boost::shared_array<T> mpD;

void VecAlloc( int size) {

boost::shared_array<T> mpD_temp(new T[size]); mpD=mpD_temp; }

public: Vector() { } Vector(int size) :Size(size) { VecAlloc(size); } }

My question is how do i get rid of boost::shared_array<T> mpD_temp(new T[size]); ???

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org

http://lists.boost.org/mailman/listinfo.cgi/boost-users

...
-- Cory Nelson http://www.int64.org

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

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

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participants (4)

Cory Nelson
Doug Henry
Jack Nguyen
pankaj jain