Saturday 8 January 2011

Pointers Varieties

Pointers Varieties
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(1) int *p;
// p is a pointer to an integer quantity

(2) int *p[10];
// p is a 10-element array of pointers to integer quantities

(3) int (*p)[10];
// p is a pointer to a 10-element integer array

(4) int *p(void);
// p is a function that returns a pointer to an integer quantity

(5) int p(char *a);
// p is a function that accepts an argument which is a pointer to a character returns an
// integer quantity

(6) int *p(char *a);
// p is a function that accepts an argument which is a pointer to a character returns a
// pointer to an integer quantity

(7) int (*p)(char *a);
// p is pointer to a function that accepts an argument which is a pointer to a character
// returns an integer quantity

(8) int (*p(char *a))[10];
// p is a function that accepts an argument which is a pointer to a character returns a
// pointer to a 10-element integer array

(9) int p(char (*a)[]);
// p is a function that accepts an argument which is a pointer to a character array returns
// an integer quantity

(10) int p(char *a[]);
// p is a function that accepts an argument which is a array of pointers to characters
// returns an integer quantity

(11) int *p(char a[]);
// p is a function that accepts an argument which is a character array returns a pointer to
// to an integer quantity

(12) int *p(char (*a)[]);
// p is a function that accepts an argument which is a pointer to a character array returns a
// pointer to an integer quantity

(13) int *p(char *a[]);
// p is a function that accepts an argument which is an array of pointers to characters
// returns a pointer to an integer quantity

(14) int (*p)(char (*a)[]);
// p is pointer to a function that accepts an argument which is a pointer to a character array
// returns an integer quantity

(15) int *(*p)(char (*a)[]);
// p is pointer to a function that accepts an argument which is a pointer to a character array
// returns a pointer to an integer quantity

(16) int *(*p)(char *a[]);
// p is pointer to a function that accepts an argument which is a array of pointers to
// characters returns a pointer to an integer quantity

(17) int (*p[10])(void);
// p is 10-element array of pointers to functions; each function returns an integer quantity

(18) int (*p[10])(char a);
// p is 10-element array of pointers to functions; each function accepts an argument which is
// a character and returns an integer quantity

(19) int *(*p[10])(char a);
// p is 10-element array of pointers to functions; each function accepts an argument which is
// a character and returns a pointer to an integer quantity

(20) int *(*p[10])(char *a);
// p is 10-element array of pointers to functions; each function accepts an argument which is
// a pointer to a character and returns a pointer to an integer quantity

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