const int = int const?

Question

For example, is

int const x = 3;

valid code?

If so, does it mean the same as

const int x = 3;

?

user_13151333 · Answer

I found that if always write const in right, it will becoming easier to read a complex pointer type, for fun.

For example:

// Just append const or pointer to
int x; // data
int const cx; // const data
int *px; // pointer to data
int const *pcx; //pointer to const data
int * const cpx; // const pointer to data
int const * const * * const cppcpcx; // const pointer to (pointer to (const pointer to const data))

user_13380465 · Answer

I have an idea how to interpret (non)const pointers and data. Split it with *.

Data type	Star sign	Pointer type	Combine	Data	Pointer
int	*	p	int *p	non-const	non-const
const int	*	p	const int *p	const	non-const
int	*	const p	int *const p	non-const	const
const int	*	const p	const int *const p	const	const

const int = int const?

7 Answers