Answer / ravi joshi

The following code snippet explain the use of #define and
#undef preprorcessor directives.

/* define our own value of NULL */
#ifdef NULL
#undef NULL /* if NULL is already defined, then
undefine it */
#define NULL ((void*)0) /* define our own version of NULL
#endif

Create a structure to specify data on students given below: Roll number, Name, Department, Course, Year of joining Assume that there are not more than 450 students in the college. 1.write a function to print names of all students who joined in a particular year 2.write a function to print the data of a student whose roll number is given

0 Answers   XYZ,

---

Is c still relevant?

0 Answers  

---

how many times does the loop iterated ? for (i=0;i=10;i+=2) printf("Hi\n");

9 Answers   TCS,

---

What is the best way to store flag values in a program?

0 Answers  

---

Tell me the use of bit field in c language?

0 Answers  

---

Do you have any idea how to compare array with pointer in c?

0 Answers  

---

What language is windows 1.0 written?

0 Answers  

---

What is the description for syntax errors?

0 Answers  

---

How will you allocate memory to a double pointer ?

2 Answers  

---

what would be the output of the following program? main() { int k = 123; char *ptr; ptr = &k; printf("%d",*ptr); }

4 Answers  

---

Finding first/last occurrence of a character in a string without using strchr( ) /strrchr( ) function.

2 Answers  

---

Why array is used in c?

0 Answers  

---