Explain following declaration int *P(void); and int (*p)(char *a);

Explain following declaration
int *P(void);
and
int (*p)(char *a);

Question Posted / anil rai

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Explain following declaration int *P(void); and int (*p)(char *a); ..

Answer / vijay

int* p(void) means p is a function that takes no argument a
return a pointer to integer.
int (*p)(char*a) means that p is a pointer to function that
take character pointer as argument and return an integer.

Is This Answer Correct ?

56 Yes

4 No

Explain following declaration int *P(void); and int (*p)(char *a); ..

Answer / binod adhikari

int *p(void)
Here p is a pointer function with no arguments. int *p means p is a pointer function which has to return an memory address of integer type to the called function (i.e. where the pointer function p has been called). (void) means function p does not have any argument.

int *p(char *a);
Here p is a pointer function with one pointer arguments of character type. The called function (i.e. where the pointer function p has been called) pass the memory address of the character variable to pointer function p since it has char *a argument. p is a pointer function so, it has to return an memory address of integer type to the called function.

Is This Answer Correct ?

8 Yes

1 No

Explain following declaration int *P(void); and int (*p)(char *a); ..

Answer / tibu

int *p(void) - says this is function with null parameter
and returns a pointer to an integer.

int (*p)(char *a) - says this is function with a pointer to
a char a as parameter and returns a pointer to an integer.

Is This Answer Correct ?

19 Yes

19 No

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