POINTERS QUESTION AND ANSWER

1.	What is (void*)0?
	A. Representation of NULL pointer B. Representation of void pointer C. Error D. None of above Answer & Explanation Answer: Option A Explanation: No answer description available for this question. Let us discuss. View Answer Compiler New Report Discuss in Forum

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2.	Can you combine the following two statements into one? char *p; p = (char*) malloc(100);
	A. char p = *malloc(100); B. char *p = (char) malloc(100); C. char *p = (char*)malloc(100); D. char *p = (char *)(malloc*)(100); Answer & Explanation Answer: Option C Explanation: No answer description available for this question. Let us discuss. View Answer Compiler New Report Discuss in Forum

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3.	In which header file is the NULL macro defined?
	A. stdio.h B. stddef.h C. stdio.h and stddef.h D. stdlib.h Answer & Explanation Answer: Option C Explanation: No answer description available for this question. Let us discuss. View Answer Compiler New Report Discuss in Forum

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4.	How many bytes are occupied by near, far and huge pointers (DOS)?
	A. near=2 far=4 huge=4 B. near=4 far=8 huge=8 C. near=2 far=4 huge=8 D. near=4 far=8 huge=8 Answer & Explanation Answer: Option A Explanation: near=2, far=4 and huge=4 pointers exist only under DOS. Under windows and Linux every pointers is 4 bytes long. View Answer Compiler New Report Discuss in Forum

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5.

If a variable is a pointer to a structure, then which of the following operator is used to access data members of the structure through the pointer variable?

A. '.' B. '&' C. '*' D. '->' Answer & Explanation Answer: Option D Explanation: No answer description available for this question. Let us discuss. View Answer Compiler New Report Discuss in Forum 6.  What would be the equivalent pointer expression for referring the array elementa[i][j][k][l] A. ((((a+i)+j)+k)+l) B. *(*(*(*(a+i)+j)+k)+l) C. (((a+i)+j)+k+l) D. ((a+i)+j+k+l) Answer & Explanation Answer: Option B Explanation: No answer description available for this question. Let us discuss. View Answer Compiler New Report Discuss in Forum 7.  A pointer is A. A keyword used to create variables B. A variable that stores address of an instruction C. A variable that stores address of other variable D. All of the above Answer & Explanation Answer: Option C Explanation: No answer description available for this question. Let us discuss. View Answer Compiler New Report Discuss in Forum 8.  The operator used to get value at address stored in a pointer variable is A. * B. & C. && D. || Answer & Explanation Answer: Option A Explanation: No answer description available for this question. Let us discuss. View Answer Compiler New Report Discuss in Forum