Programming in C++, 2nd Edition

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Example:

int const * pm=&k;

In the above example, pm is declared as pointer to constant. The following exam-

ples are possible and invalid operations.

// k=5; // possible

// *pm=5 // cannot modify the constant object

// pm++; // possible

// ++ *pm; // cannot modify a constant object

// *pm=5; // cannot modify a constant object

(3) Pointer and variable both constants:

Example:

const char * const p=“ABC”;

In the above example, both the pointer and variable are constants. Hence, it is not

possible to change the value and address of the pointer.

4.4 Write a program to define constant pointer and pointer to constant. Perform the pos-

sible operations. ...