Tao:
On 6/7/23 12:45, Tao Jin wrote:
*** Caution: EXTERNAL Sender ***
Dear Wolfgang,
Here is a simple test code (I also attached the source code):
int main()
{
using namespace dealii;
const unsigned int *matrix_dimension* = 4;
Tensor<2, matrix_dimension> myTensor;
FullMatrix<double> myMatrix(matrix_dimension,
matrix_dimension);
for (unsigned int i = 0; i < matrix_dimension; i++)
for (unsigned int j = 0; j < matrix_dimension; j++)
{
myMatrix(i,j) = i + j;
}
myMatrix.copy_to(myTensor);
std::cout << myTensor.dimension << std::endl;
return 0;
}
When *matrix_dimension =*2 or 3, the code works fine. When *matrix_dimension
*= 4, it has a linking error as below:
/error: undefined reference to 'void
dealii::FullMatrix<double>::copy_to<4>(dealii::Tensor<2, 4, double>&, unsigned
long, unsigned long, unsigned long, unsigned long, unsigned int, unsigned int)
const'
collect2: error: ld returned 1 exit status
make[3]: *** [CMakeFiles/main.dir/build.make:116: main] Error 1/
The version of deal.ii is 9.4.0.
I tried this out with the current development version (which will become 9.5
within the next few weeks) and it works just fine:
https://github.com/dealii/dealii/pull/15331
I am not sure what is going on here. In your code snippet, you call the
copy_to() function with one argument, but the error message refers to the
function with 7 arguments. Are you sure that this is the code you wanted to use?
Best
W.
--
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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