C Aptitude 13
C program is one of most popular programming language which is used for core level of coding across the board. C program is used for operating systems, embedded systems, system engineering, word processors,hard ware drivers, etc.

In this site, we have discussed various type of C programs till date and from now on, we will move further by looking at the C aptitude questions.

In the coming days, we will post C aptitude questions, answers and explanation for interview preparations.

The C aptitude questions and answers for those questions along with explanation for the interview related queries.

We hope that this questions and answers series on C program will help students and freshers who are looking for a job, and also programmers who are looking to update their aptitude on C program.
Some of the illustrated examples will be from the various companies, and IT industry experts.
Read more about C Programming Language . and read the C Programming Language (2nd Edition). by K and R.

 
Predict the output or error(s) for the following:

C aptitude 13.1

  ain()
{
int i=0;
 
for(;i++;printf("%d",i)) ;
printf("%d",i);
}

Answer: 1

Explanation: before entering into the for loop the checking condition is “evaluated”. Here it evaluates to 0 (false) and comes out of the loop, and i is incremented (note the semicolon after the for loop).

C aptitude 13.2

   main()
{
  char s[]={'a','b','c','n','c',''};
  char *p,*str,*str1;
  p=&s[3];
  str=p;
  str1=s;
  printf("%d",++*p + ++*str1-32);
}

Answer: M

Explanation:p is pointing to character ‘n’.str1 is pointing to character ‘a’ ++*p meAnswer:”p is pointing to ‘n’ and that is incremented by one.” the ASCII value of ‘n’ is 10. then it is incremented to 11. the value of ++*p is 11. ++*str1 meAnswer:”str1 is pointing to ‘a’ that is incremented by 1 and it becomes ‘b’. ASCII value of ‘b’ is 98. both 11 and 98 is added and result is subtracted from 32. i.e. (11+98-32)=77(“M”);

C aptitude 13.3

   main()
{
  struct xx
   {
      int x=3;
      char name[]="hello";
   };
struct xx *s=malloc(sizeof(struct xx));
printf("%d",s->x);
printf("%s",s->name);
}

Answer: Compiler Error

Explanation: Initialization should not be done for structure members inside the structure declaration.

Read more Similar C Programs 

Learn C Programming
C Aptitude
C Interview questions

You can easily select the code by double clicking on the code area above.

To get regular updates on new C programs, you can Follow @c_program

You can discuss these programs on our Facebook Page. Start a discussion right now,

our page!

Share this program with your Facebook friends now! by liking it

(you can send this program to your friend using this button)

Like to get updates right inside your feed reader? Grab our feed!

To browse more C Programs visit this link

(c) www.c-program-example.com

C Aptitude 10
C program is one of most popular programming language which is used for core level of coding across the board. C program is used for operating systems, embedded systems, system engineering, word processors,hard ware drivers, etc.

In this site, we have discussed various type of C programs till date and from now on, we will move further by looking at the C aptitude questions.

In the coming days, we will post C aptitude questions, answers and explanation for interview preparations.

The C aptitude questions and answers for those questions along with explanation for the interview related queries.

We hope that this questions and answers series on C program will help students and freshers who are looking for a job, and also programmers who are looking to update their aptitude on C program.
Some of the illustrated examples will be from the various companies, and IT industry experts.
Read more about C Programming Language . and read the C Programming Language (2nd Edition). by K and R.

Predict the output or error(s) for the following:

C aptitude 10.1

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

Answer: 4..2

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

C aptitude 10.2

    main()
{
 int i=400,j=300;
 printf("%d..%d");
}

Answer: 400..300

Explanation:printf takes the values of the first two assignments of the program. Any number of printf’s may be given. All of them take only the first two values. If more number of assignments given in the program, then printf will take garbage values.

C aptitude 10.3

    main()
{
 char *p;
 p="Hello";
 printf("%cn",*&*p);
}

Answer: H

Explanation: * is a dereference operator & is a reference operator. They can be applied any number of times provided it is meaningful. Here p points to the first character in the string “Hello”. *p dereferences it and so its value is H. Again & references it to an address and * dereferences it to the value H.

Read more Similar C Programs
Learn C Programming
C Aptitude
C Interview questions

You can easily select the code by double clicking on the code area above.

To get regular updates on new C programs, you can Follow @c_program

You can discuss these programs on our Facebook Page. Start a discussion right now,

our page!

Share this program with your Facebook friends now! by liking it

(you can send this program to your friend using this button)

Like to get updates right inside your feed reader? Grab our feed!

To browse more C Programs visit this link

(c) www.c-program-example.com