[petsc-users] Question about Vec/MatSetLocalToGlobalMapping

[Pedro Torres]

Hi,

How can I check if a mapping is already set in a Vec/Mat object??. I try the
following,

if(!A->mapping)MatSetLocalToGlobalMapping(A,map);

but I get this error
error: invalid use of incomplete type ‘struct _p_Mat’
error: forward declaration of ‘struct _p_Mat’

Thanks in advance

Pedro Torres
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