Any Blitz++ and TVMET experts out there?

[dss]

I'm trying to compile some code that I downloaded. The code uses
Blitz++ and tvmet to manipulate arrays. I have never worked with either
of these, and I am having trouble getting both of these to work. When I
compile the code, I get a compiler error in the tvmet files. Instead of
trying to figure out what is going on with tvmet, I decided to do
everything with blitz. Which is also not working out. I am hoping that
someone can provide some insight into what I am doing wrong.
For example, I removed the following code.

typedef tvmet::Matrix<double,3, 3mtr_type;
typedef blitz::Array<mtr_type,2matrix;
..
..
..
mutable matrix mat;

If I correctly understand the above code then "mat" is a 3 by 3 array.
I replaced this code with

blitz::Array<double,2mat(3,3);

Which gave me the error message 'The text "3" is unexpected'.

Any insight into the problem would be appreciated.

[John Harrison]

dss wrote:

I'm trying to compile some code that I downloaded. The code uses
Blitz++ and tvmet to manipulate arrays. I have never worked with either
of these, and I am having trouble getting both of these to work. When I
compile the code, I get a compiler error in the tvmet files. Instead of
trying to figure out what is going on with tvmet, I decided to do
everything with blitz. Which is also not working out. I am hoping that
someone can provide some insight into what I am doing wrong.
For example, I removed the following code.

typedef tvmet::Matrix<double,3, 3mtr_type;
typedef blitz::Array<mtr_type,2matrix;
.
.
.
mutable matrix mat;

If I correctly understand the above code then "mat" is a 3 by 3 array.
I replaced this code with

blitz::Array<double,2mat(3,3);

Which gave me the error message 'The text "3" is unexpected'.

Any insight into the problem would be appreciated.

I would guess that mat exists in a class, right? I'm guessing this
because of the use of the keyword mutable.

If so then you do not construct class members where you declare them,
you do so in a constructor initalisation list instead.

This is illegal

class X
{
X() {}
blitz::Array<double,2mat(3,3);
};

This is legal

class X
{
X() : mat(3,3) {}
blitz::Array<double,2mat;
};

HTH

john

[dss]

John Harrison wrote:

dss wrote:

>I'm trying to compile some code that I downloaded. The code uses
Blitz++ and tvmet to manipulate arrays. I have never worked with either
of these, and I am having trouble getting both of these to work. When I
compile the code, I get a compiler error in the tvmet files. Instead of
trying to figure out what is going on with tvmet, I decided to do
everything with blitz. Which is also not working out. I am hoping that
someone can provide some insight into what I am doing wrong.
For example, I removed the following code.

typedef tvmet::Matrix<double,3, 3mtr_type;
typedef blitz::Array<mtr_type,2matrix;
.
.
.
mutable matrix mat;

If I correctly understand the above code then "mat" is a 3 by 3 array.
I replaced this code with

blitz::Array<double,2mat(3,3);

Which gave me the error message 'The text "3" is unexpected'.

Any insight into the problem would be appreciated.

I would guess that mat exists in a class, right? I'm guessing this
because of the use of the keyword mutable.

If so then you do not construct class members where you declare them,
you do so in a constructor initalisation list instead.

This is illegal

class X
{
X() {}
blitz::Array<double,2mat(3,3);
};

This is legal

class X
{
X() : mat(3,3) {}
blitz::Array<double,2mat;
};

HTH

john

Yes. You are correct. I guess my understanding of
"tvmet::Matrix<double,3, 3>" must be incorrect. Thanks John