The famous Bjarne Stroustrup, notable for the creation and the development of the C++, said ...
The choice between "int* p;" and "int *p;" is not about right and
wrong, but about style and emphasis. C emphasized expressions;
declarations were often considered little more than a necessary evil.
C++, on the other hand, has a heavy emphasis on types.
A "typical C programmer" writes "int *p;" and explains it "*p is what
is the int" emphasizing syntax, and may point to the C (and C++)
declaration grammar to argue for the correctness of the style. Indeed,
the * binds to the name p in the grammar.
A "typical C++ programmer" writes "int* p;" and explains it "p is a
pointer to an int" emphasizing type. Indeed the type of p is int*. I
clearly prefer that emphasis and see it as important for using the
more advanced parts of C++ well.
So, there's no difference. It is just a code style.
From here
