Difference between vector and Carray

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std::vector <mtpoint2d> m_Points;

CArray < MtPoint2d , Mtpoint2d > m_Points

are both the above declartions are same?

if i give std::vector <mtpoint2d mtpoint2d=""> m_Points; as CArray its giving me error ...

Please let me know

Posted 19-Oct-15 20:29pm

imran.prdc

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2 solutions

Solution 2

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CArray < class , class > point

Class A::A(const A &point2Array)
{

    point.Copy(point2Array.m_Points); //working with Carray

    how to do with vector
}

please let me know how to do with vector

Posted 19-Oct-15 21:10pm

imran.prdc

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CPallini 20-Oct-15 3:59am

Let me say I find pointless such an operation, however, here we go:

std::vector< MtPoint2D > point;
class A::A(const A & other)
{
point.clear();
point.insert(point.begin(), other.m_Points.begin(), other.m_Points.end());
}

[no name] 20-Oct-15 4:33am

thanks you very much

[no name] 20-Oct-15 5:20am

add AP in CArray whats the equivalent API in vector for Adding is emplace-back . please let me know

[no name] 20-Oct-15 6:20am

u there

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CPallini · Accepted Answer · 2015-10-19T20:46:00

Solution 1

The std::vector and the CArray are two different containers. They may server the same purpose, however they are not interchangeable (their public interface is different). If you can, use std::vector, since it is better.

[update]
You may alternatively use a

C++

CArray < MtPoint2d, MtPoint2d >

or a

C++

std::vector < MtPoint2d >

for the same purpose.
[/update]

Posted 19-Oct-15 20:46pm

CPallini

Updated 19-Oct-15 21:07pm

v2

Comments

[no name] 20-Oct-15 2:56am

std::vector m_Points;

CArray < MtPoint2d , Mtpoint2d > m_Points

both are same ? if i use one MtPoint2d in vector

CPallini 20-Oct-15 3:08am

Yes, the vector takes just one template argument. See my update soution.

[no name] 20-Oct-15 2:56am

thanks please let me kmow answer

[no name] 20-Oct-15 3:10am

thanks

CPallini 20-Oct-15 3:41am

You are welcome.

Sergey Alexandrovich Kryukov 20-Oct-15 9:02am

5ed.
—SA

CPallini 20-Oct-15 16:07pm

Thank you.