What is the result of the expression ptr-- in C, where ptr is a pointer?
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C Programming · all questionsPointer
Pointer
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In C, what is a function pointer?
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What is the result of the expression &array[0] in C, where array is an integer array?
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In C, what is a null pointer (NULL or 0)?
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What is the result of the expression ptr += 2 in C, where ptr is a pointer?
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In C, what is the purpose of the 'calloc' function?
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What is the result of the expression *ptr = 42 in C, where ptr is a pointer to an int?
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In C, what is a pointer to a function that takes no arguments and returns an integer?
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What is the result of the expression *ptr = NULL in C, where ptr is a pointer?
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In C, what is a pointer to a constant pointer (int* const)?
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Determine Output:
void main()
{
char far *farther, *farthest;
printf("%d..%d", sizeof(farther), sizeof(farthest));
}
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Determine Output:
main()
{
char *str1 = "abcd";
char str2[] = "abcd";
printf("%d %d %d", sizeof(str1), sizeof(str2), sizeof("abcd"));
}Select an option to see the answer and solution.
Choose the best answer.
Prior to using a pointer variable
Prior to using a pointer variable
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Comment on the following pointer declaration?
int *ptr, p;Select an option to see the answer and solution.
What will be the output?
main()
{
char *p;
p = "Hello";
printf("%cn",*&*p);
}Select an option to see the answer and solution.
Determine output:
#include <stdio.h>
void main()
{
char *p = NULL;
char *q = 0;
if(p)
printf(" p ");
else
printf("nullp");
if(q)
printf("q");
else
printf(" nullq");
}Select an option to see the answer and solution.
The address operator &, cannot act on
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The statement
int **a;
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What will be the output of the following program?
#include<stdio.h>
void main()
{
int i = 10;
void *p = &i;
printf("%d\n", (int)*p);
}Select an option to see the answer and solution.
What will be the output of the following program code?
#include<stdio.h>
void main()
{
int i = 10;
void *p = &i;
printf("%f", *(float *)p);
}Select an option to see the answer and solution.