On 6/16/21 4:29 AM, bob bill wrote:
*The boundary indicator for Neumann data is 1, and I gave a pointer to a
constant function as argument. **Unfortunately, the compiler says: "*no
matching constructor for initialization of 'std::map<types::boundary_id, const
Function<2> *>' (aka 'map<unsigned int, const Function<2> *>')
std::map<types::boundary_id, const Function<dim> *>(1,&neumann_func),*"*
*What am I missing?*
It has nothing to do with the function you're trying to call. You just can't
create a map by saying
std::map<U,V>(u,v)
where u is a key and v is a value. But you can
std::map<U,V>({{u,v}})
Here, the outer braces enclose a list of pairs, which here has only one
element and that element is initialized by the pair u,v.
Best
W.
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Wolfgang Bangerth email: [email protected]
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