There are two structures, one nested in the other, and the nested one is dynamic. How is the access to the fields of the nested structure (there is a pointer) and how to properly free up memory?
struct One { G4double A, B; G4int id; }; struct Two { G4int event,part; struct One *Spin=new One[part]; } TwoInc; 
@glebasta , I don’t know why it took so hard (and where to insert it in order to compile), but
delete [] TwoInc.Spin; // delete [] p->Spin; для Two *p; should work.
Why not make it any easier?
struct Two { int event,part; struct One *Spin; }; ... struct Two TwoInc; TwoInc.part = 10; // инициализируете нужным значением TwoInc.Spin = new One[TwoInc.part]; or in function
struct Two *ini_foo (struct Two *p, int inival) { p->part = inival; p->Spin = new One[inival]; return p; } simple and clear.
Source: https://ru.stackoverflow.com/questions/335408/
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Twostructure is the owner of theOneinstance, it is responsible for freeing the memory. When it is “right” to free memory, the project architect should know best, that is, you. This is often done in a destructor. - VladD