Question #92245 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/92245
Status: Solved => Open
Phil Marinier is still having a problem:
These are my declarations
100 dolfin::Function GradA;
101 dolfin::Function& GradAX = GradA[0];
102 dolfin::Function& GradAY = GradA[1];
103 dolfin::Function GradC;
104 dolfin::Function& GradCX = GradC[0];
105 dolfin::Function& GradCY = GradC[1];
This is my error message
Fiterator.cc: In member function ‘void Fiterator::solve(double*, double*,
double*)’:
Fiterator.cc:101: error: invalid initialization of non-const reference of type
‘dolfin::Function&’ from a temporary of type ‘dolfin::SubFunction’
Fiterator.cc:102: error: invalid initialization of non-const reference of type
‘dolfin::Function&’ from a temporary of type ‘dolfin::SubFunction’
Fiterator.cc:104: error: invalid initialization of non-const reference of type
‘dolfin::Function&’ from a temporary of type ‘dolfin::SubFunction’
Fiterator.cc:105: error: invalid initialization of non-const reference of type
‘dolfin::Function&’ from a temporary of type ‘dolfin::SubFunction’
It compiles when I do the deep copy (remove the & from above
declarations) but then I get this error message when I try to run the
program:
terminate called after throwing an instance of 'std::runtime_error'
what(): *** Error: Unable to extract sub function, missing coefficients
(user-defined function).
[wolf:26196] *** Process received signal ***
[wolf:26196] Signal: Aborted (6)
which means that the Function does not yet have subfunctions? which
makes sense I guess. I will use the vector().set(block, num_rows, rows)
as proposed by Patrick, but it would be much more convinient to use the
shallow subfunction.
Thank you again
Phil
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