// When constructing an object there should not be any space between the & and the variable name:

MyClass my1(foo, &bar);
MyClass my2(foo, bar);
MyClass my3(foo, bar + 3);
MyClass my4(42);
MyClass my5(foo(), bar);
MyClass my6(int foo, int& bar);
MyClass my7(const int foo, int& bar);


//When using references inside of casts there is also an additional space after the &:

MyClass& myInst = static_cast<MyClass&>(otherInst);


// When using the qt-specific signals and slots the pointer star is separated from the type with a space:

connect(&mapper, SIGNAL(mapped(QWidget*)), this, SLOT(onSomeEvent(QWidget*)));

extern int select(int __nfds, fd_set* __restrict __readfds, fd_set* __restrict __writefds, fd_set* __restrict __exceptfds, struct  timeval* __restrict __timeout);
