smart pointer declaration question
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]); ???
mpD=boost::shared_array<T>(new T[size]); On 6/16/05, Jack Nguyen <bluekite2000@gmail.com> 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
I m trying to build a matrix and m having compile error w/ thei following codes mpD=boost::shared_array<boost::shared_array<T> >(new boost::shared_array<T>[cols]); mpD[0]=boost::shared_array<T>(new T[rows*cols]); for (int i=1; i<cols;i++) mpD[i]=mpD[0]+i*rows; Seems like there s no match for operator+ Regards, On 6/16/05, Cory Nelson <phrosty@gmail.com> wrote:
mpD=boost::shared_array<T>(new T[size]);
On 6/16/05, Jack Nguyen <bluekite2000@gmail.com> 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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Do we have dedicated mailing list for boost.python. please give me the information. thanks Jack Nguyen <bluekite2000@gmail.com> 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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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 <bluekite2000@gmail.com> wrote:
I m trying to build a matrix and m having compile error w/ thei following codes mpD=boost::shared_array<boost::shared_array<T> >(new boost::shared_array<T>[cols]); mpD[0]=boost::shared_array<T>(new T[rows*cols]); for (int i=1; i<cols;i++) mpD[i]=mpD[0]+i*rows; Seems like there s no match for operator+ Regards,
On 6/16/05, Cory Nelson <phrosty@gmail.com> wrote:
mpD=boost::shared_array<T>(new T[size]);
On 6/16/05, Jack Nguyen <bluekite2000@gmail.com> 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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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 <brilligent@gmail.com> 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 <bluekite2000@gmail.com> wrote:
I m trying to build a matrix and m having compile error w/ thei following
codes
mpD=boost::shared_array<boost::shared_array<T> (new boost::shared_array<T>[cols]); mpD[0]=boost::shared_array<T>(new T[rows*cols]); for (int i=1; i<cols;i++) mpD[i]=mpD[0]+i*rows; Seems like there s no match for operator+ Regards,
On 6/16/05, Cory Nelson <phrosty@gmail.com > wrote:
mpD=boost::shared_array<T>(new T[size]);
On 6/16/05, Jack Nguyen <bluekite2000@gmail.com> 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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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 <bluekite2000@gmail.com> 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 <brilligent@gmail.com> 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 <bluekite2000@gmail.com> wrote:
I m trying to build a matrix and m having compile error w/ thei following
codes
mpD=boost::shared_array<boost::shared_array<T> (new boost::shared_array<T>[cols]); mpD[0]=boost::shared_array<T>(new T[rows*cols]); for (int i=1; i<cols;i++) mpD[i]=mpD[0]+i*rows; Seems like there s no match for operator+ Regards,
On 6/16/05, Cory Nelson <phrosty@gmail.com > wrote:
mpD=boost::shared_array<T>(new T[size]);
On 6/16/05, Jack Nguyen <bluekite2000@gmail.com> 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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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 <bluekite2000@gmail.com> 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 <bluekite2000@gmail.com> 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 <brilligent@gmail.com> 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 <bluekite2000@gmail.com> wrote:
I m trying to build a matrix and m having compile error w/ thei
following codes
mpD=boost::shared_array<boost::shared_array<T> (new boost::shared_array<T>[cols]); mpD[0]=boost::shared_array<T>(new T[rows*cols]); for (int i=1; i<cols;i++) mpD[i]=mpD[0]+i*rows; Seems like there s no match for operator+ Regards,
On 6/16/05, Cory Nelson <phrosty@gmail.com > wrote:
mpD=boost::shared_array<T>(new T[size]);
On 6/16/05, Jack Nguyen <bluekite2000@gmail.com> 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
_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users
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participants (4)
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Cory Nelson -
Doug Henry -
Jack Nguyen -
pankaj jain