Is it possible to have a pointer literal?

Question

In C one can have string literals in the form of

char *string = \"string here\";

integer literals:

uint8_t num = 5;
         


        

Answer 1

No, it's not. That is because literals are valid values, and the only valid pointers are addresses of objects, i.e. the result of address-of operations or of pointer arithmetic on valid pointers.

You could argue that the nullptr keyword furnishes a kind of "pointer literal"; the C++ standard calls it that. It is however the only pointer literal, and ironically it is not of pointer type.