| Other C Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| what is out put of the following code?
#include
class Base
{
Base()
{
cout<<"constructor base";
}
~Base()
{
cout<<"destructor base";
}
}
class Derived:public Base
{
Derived()
{
cout<<"constructor derived";
}
~Derived()
{
cout<<"destructor derived";
}
}
void main()
{
Base *var=new Derived();
delete var;
}
| Honeywell | 2 |
| What kind of sorting is this?
SORT (k,n)
1.[Loop on I Index]
repeat thru step2 for i=1,2,........n-1
2.[For each pass,get small value]
min=i;
repeat for j=i+1 to N do
{
if K[j]<k[min]
min=j;
}
temp=K[i];K[i]=K[min];K[min]=temp;
3.[Sorted Values will be returned]
A)Bubble Sort
B)Quick Sort
C)Selection Sort
D)Merge Sort | Accenture | 3 |
| write a program to swap bits in a character and return the value
prototype of function
char fun (char a, charb flag c)
where fun returns a char, char a is a the value char b is
the bit to be changed and flag c is the bit value
for eg: x=fun(45,7,0)
since 45 is 0010 0101
and ow x should contain the value 65 (0110 0101) | Bosch | 1 |
| main()
{int a=200*200/100;
printf("%d",a);
} | TCS | 7 |
| Can we access RAM?
How? Whats the range of access?
Similarly What are other hardware we can access? | | 1 |
| What is C language Terminator? | TCS | 12 |
| How can I implement opaque (abstract) data types in C?
What's the difference between these two declarations?
struct x1 { ... };
typedef struct { ... } x2;
| | 2 |
| Write a program which take a integer from user and tell
whether the given variable is squar of some number or not.
eg: is this number is 1,4,9,16... or not
| Alcatel | 8 |
| What does a run-time "null pointer assignment" error mean? | | 2 |
| How would you write qsort? | | 1 |
| void main()
{
int s[4][2]={ {1234,56},{1212,33},{1434,80},{1312,78} };
int (*p)[2];
int i,j,*pint;
for(i=0;i<=3;i++)
{
p=&s[i];
pint=p;
printf("\n");
for(j=0;j<=1;j++)
printf("%d",*(pint+j));
}
} while running this program it shows a warning-suspicious
pointer conversion ie pint=p; my que is why should we assign
the value of p to pint again.why cant we use it directly as
*(p+j)..but if i use like tat the o/p is garbage value.. | | 1 |
| How can I convert integers to binary or hexadecimal? | | 2 |
| can anyone please tell me wat is backlogs... i was looking
for the job openings where i read this.. eligibility
criteria minimum 70% in degree without backlogs. is that
arrear.. if so is it standing arrear or history of
arrears... please help me... | | 4 |
| How can I read a directory in a C program? | Wipro | 1 |
| what is real time system?what is the differance between hard
and soft real time systems | | 2 |
| value = 0xabcd;
for (loop = 1; (value >> 1) & 1 | loop & 1; loop++) {
foo();
if (loop & 1)
value >>= 1;
}
how many times is foo() executed? | Google | 5 |
| User define function contain thier own address or not. | | 2 |
| Main must be written as
a.the first function in the program
b.Second function in the program
c.Last function in the program
d.any where in the program
| TCS | 12 |
| #include<stdio.h>
main()
{
char *p1;
char *p2;
p1=(char *) malloc(25);
p2=(char *) malloc(25);
strcpy(p1,"Ramco");
strcpy(p2,"Systems");
strcat(p1,p2);
printf("%s",p1);
}
Tell me the output? | Ramco | 5 |
| Why the use of alloca() is discouraged?
| Oracle | 2 |
| |
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