Re: [eigen] Vector's -= operator does not seem to work

["Everton Rufino Constantino1" <everton.constantino@xxxxxxx>]

Hi Mr.Dang,

can you give more details please? What platform are you running this test on?

 

Thanks,

Everton Constantino

Software Developer

Application Libraries Optimisation
Linux Technology Center, IBM Systems
e-mail: everton.constantino@xxxxxxx

 

 

 

----- Original message -----
From: Hung Dang <hungptit@xxxxxxxxx>
To: eigen@xxxxxxxxxxxxxxxxxxx
Cc:
Subject: [EXTERNAL] [eigen] Vector's -= operator does not seem to work
Date: Tue, Mar 17, 2020 21:51
 

Hi,

I try some Eigen examples (see below) and the -= operator is not
supported. Is there any way to make it work without creating a constant
vector?

Thank a lot,

Hung

     Matrix2d a;
     a << 1, 2, 3, 4;
     Vector3d v(1, 2, 3);
     std::cout << "a * 2.5 =\n" << a * 2.5 << std::endl;
     std::cout << "0.1 * v =\n" << 0.1 * v << std::endl;
     std::cout << "Doing v *= 2;" << std::endl;

     v *= 2;
     std::cout << "Now v =\n" << v << std::endl;

     // Does not work
     // v -= 2;
     // std::cout << "Now v =\n" << v << std::endl;