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Frequently Asked C interview questions and answers for freshers Page 11

(#M40029231) C QUESTION C Keep an EYE

output??
#define int char
main()
{i
nt i=65;
printf("sizeof(i)=%d",sizeof(i));
}
Answer: sizeof(i)=1
Explanation: Since the #define replaces the string int by the macro char
50. main()
{i
nt i=10;
i=!i>14;
Printf ("i=%d",i);
}
Answer: i=0
Explanation: In the expression !i>14 , NOT (!) operator has more precedence than ‘ >’ symbol. !
is a unary logical operator. !i (!10) is 0 (not of true is false). 0>14 is false (zero).

Asked In C MAN (11 years ago)

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(#M40018724) C QUESTION C- QUESTIONS Keep an EYE

When we mention the prototype of a function?
Options
1) Defining
2) Declaring
3) Prototyping
4) Calling

Asked In C (11 years ago)

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(#M40157158) C QUESTION using extern key word Keep an EYE

whta is the ouput if we execute this code
#include
extern int x;
int main()
{
do{
do{
printf("%o",x);
}
while(!-2);
}
while(0);
}
return 0;
}int x=8;

Asked In C yerra anitha (8 years ago)

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(#M40018759) C QUESTION C- QUESTIONS Keep an EYE

How can you increase the size of a dynamically allocated
array?

Asked In C (11 years ago)

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(#M40032280) C QUESTION Keep an EYE

Which header file should be included to use functions like malloc() and calloc()?

Options
1) memory.h
2) stdlib.h
3) string.h
4) dos.h

Asked In C Mallela Srilakshmi (11 years ago)

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(#M40029251) C QUESTION C Keep an EYE

output?
void main()
{
char far *farther,*farthest;
printf("%d..%d",sizeof(farther),sizeof(farthest));
}

A. 4..2

Explanation: The second pointer is of char type and not a far pointer

Asked In C MAN (11 years ago)

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(#M40139463) C QUESTION technical (cocubes) Keep an EYE

Brain of computer is ?
1.secondary storage
2.cpu
3.ram
4.none

Asked In C soumya (10 years ago)

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(#M40157623) C QUESTION printf puzzle Keep an EYE

printf("%d",printf("%d",printf("%d",1234)));

Asked In C SHRIVATHSAN K M (8 years ago)

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(#M40028774) C QUESTION Technical Question on c Keep an EYE

How can you determine the size of an allocated portion of memory?

Asked In C MAN (11 years ago)

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(#M40029304) C QUESTION C Keep an EYE

output?

Q. main( )
{i
nt a[2][3][2] = {{{2,4},{7,8},{3,4}},{{2,2},{2,3},{3,4}}};
printf(%u %u %u %d n,a,*a,**a,***a);
printf(“%u %u %u %d n”,a+1,*a+1,**a+1,***a+1);
}
Answer:
100, 100, 100, 2
114, 104, 102, 3
Explanation: The given array is a 3-D one. It can also be viewed as a 1-D array.
100 102 104 106 108 110 112 114
116 118 120 122
thus, for the first printf statement a, *a, **a give address of first element. since the indirection
***a gives the value. Hence, the first line of the output.
for the second printf a+1 increases in the third dimension thus points to value at 114, *a+1
increments in second dimension thus points to 104, **a +1 increments the first dimension thus
points to 102 and ***a+1 first gets the value at first location and then increments it by 1. Hence,
the output.

Asked In C MAN (11 years ago)

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