C For Swimmers - Pointers - Part I


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C For Swimmers : Mastering C step-by-step

NOTE : It is assumed that -

Necessary header files are included

Programs/Snippets are tested under Linux as well as Windows platform

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The underlying machine is an x86 system

Solutions : Pointers - Part I

[Q001] Several declarations involving pointers are shown below. Pick the correct solution.

int *ptr;

(a)ptr is a integer variable
(b)ptr is a pointer to an integer quantity
(c)Invalid statement
(d)None of these

[Q002] Several declarations involving pointers are shown below. Pick the correct solution.

int *ptr[10];

(a)ptr is a pointer to an integer quantity
(b)ptr is a pointer to a 10-element integer array
(c)ptr is a 10-element array of pointers to integer quantities
(d)None of these

[Q003] Several declarations involving pointers are shown below. Pick the correct solution.

int (*ptr)[10];

(a)ptr is a pointer to an integer quantity
(b)ptr is a pointer to a 10-element integer array
(c)ptr is a 10-element array of pointers to integer quantities
(d)None of these

[Q004] Several declarations involving pointers are shown below. Pick the correct solution.

int *ptr(void);

(a)ptr is a pointer to an integer
(b)ptr is a function that returns a pointer to an integer quantity
(c)ptr is a function pointer that returns integer quantity
(d)None of these

[Q005] Several declarations involving pointers are shown below. Pick the correct solution.

int ptr(int *a);

(a)Invalid statement
(b)ptr is a function that accepts an argument which is a pointer to a integer returns an integer quantity
(c)ptr is a function pointer
(d)None of these

[Q006] Several declarations involving pointers are shown below. Pick the correct solution.

int *ptr(int *a);

(a)Invalid statement
(b)ptr is a function pointer that accepts an argument which is a pointer to a integer returns an integer quantity
(c)ptr is a function that accepts an argument which is a pointer to a integer returns a pointer to an integer quantity
(d)None of these

[Q007] Several declarations involving pointers are shown below. Pick the correct solution.

int (*ptr)(char *a);

(a)Invalid statement
(b)ptr is a pointer to a function that accepts an argument which is a pointer to a character returns an integer quantity
(c)ptr is a function that accepts an argument which is a pointer to a character returns a pointer to an integer quantity
(d)None of these

[Q008] Several declarations involving pointers are shown below. Pick the correct solution.

int (*ptr(int *b))[5];

(a)Invalid statement
(b)ptr is a pointer to a function that accepts pointer to an integer returns a 5-element integer array
(c)ptr is a function that accepts an argument which is a pointer to a integer returns a pointer to a 5-element integer array
(d)None of these

[Q009] Several declarations involving pointers are shown below. Pick the correct solution.

char ptr(int (*a)[]);

(a)Invalid statement
(b)ptr is a function that accepts an argument which is a pointer to a integer array returns an character quantity
(c)ptr is a function that accepts an argument which is an array of pointers to integers returns an character quantity
(d)None of these

[Q010] Several declarations involving pointers are shown below. Pick the correct solution.

char ptr(int *a[]);

[Q011] Several declarations involving pointers are shown below. Pick the correct solution.

int *ptr(char a[]);

(a)ptr is a function pointer
(b)ptr is a function that accepts an argument which is a character array returns an integer
(c)ptr is a function that accepts an argument which is a character array returns a pointer to an integer quantity
(d)None of these

[Q012] Several declarations involving pointers are shown below. Pick the correct solution.

int *ptr(char *a[]);

(a)ptr is a function pointer
(b)ptr is a function that accepts an argument which is a pointer to a character array returns a pointer to an integer quantity
(c)ptr is a function that accepts an argument which is a array of pointers to characters returns a pointer to an integer quantity
(d)None of these

[Q013] Several declarations involving pointers are shown below. Pick the correct solution.

int (*ptr)(char (*a)[]);

(a)ptr is a function that accepts an argument which is a pointer to a character array returns a pointer to an integer quantity
(b)ptr is a pointer to a function that accepts an argument which is a pointer to a character array returns an integer quantity
(c)ptr is a pointer to a function that accepts an argument which is a array of pointers to characters returns an integer quantity
(d)None of these

[Q014] Several declarations involving pointers are shown below. Pick the correct solution.

int *(*ptr)(char (*a)[]);

(a)ptr is a function that accepts an argument which is a pointer to a character array returns a pointer to an integer quantity
(b)ptr is a pointer to a function that accepts an argument which is a pointer to a character array returns a pointer to an integer quantity
(c)ptr is a pointer to a function that accepts an argument which is a array of pointers to characters returns a pointer to an integer quantity
(d)None of these

[Q015] Several declarations involving pointers are shown below. Pick the correct solution.

int *(*ptr)(char *a[]);

(a)ptr is a function that accepts an argument which is a pointer to a character array returns a pointer to an integer quantity
(b)ptr is a pointer to a function that accepts an argument which is a pointer to a character array returns a pointer to an integer quantity
(c)ptr is a pointer to a function that accepts an argument which is an array of pointers to characters returns a pointer to an integer quantity
(d)None of these

[Q016] Several declarations involving pointers are shown below. Pick the correct solution.

int (*ptr[10])(void);

(a)Invalid statement
(b)ptr is a function that returns an integer quantity
(c)ptr is a 10-element array of pointers to functions. Each function returns an integer quantity
(d)ptr is pointer to a function that returns a pointer to a 10-element integers

[Q017] Several declarations involving pointers are shown below. Pick the correct solution.

int (*ptr[10])(float a);

(a)Invalid statement
(b)ptr is a function that returns an integer quantity
(c)ptr is a 10-element array of pointers to functions. Each function accepts an argument which is a float and returns an integer quantity
(d)ptr is pointer to a function that accepts an argument which is a float and returns a pointer to a 10-element integers

[Q018] Several declarations involving pointers are shown below. Pick the correct solution.

int *(*ptr[10])(float a);

(a)Invalid statement
(b)ptr is a function that returns an integer quantity
(c)ptr is a 10-element array of pointers to functions. Each function accepts an argument which is a float and returns an integer quantity
(d)ptr is a 10-element array of pointers to functions. Each function accepts an argument which is a float and returns a pointer to an integer quantity

[Q019] Several declarations involving pointers are shown below. Pick the correct solution.

int *(*ptr[10])(float *a);

(a)Invalid statement
(b)ptr is a function that returns an integer quantity
(c)ptr is a 10-element array of pointers to functions. Each function accepts an argument which is a pointer to a float and returns an integer quantity
(d)ptr is a 10-element array of pointers to functions. Each function accepts an argument which is a pointer to a float and returns a pointer to an integer quantity

[Q020] Several declarations involving pointers are shown below. Pick the correct solution.

int *ptr(char (*a)[]);

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