Answer / ravi.jnv

Volatile is to inform the compiler that not to optimise
code.
for ex:
int a = port1;
int b = port1;
int c = port1;

compiler may convert it as
int a=b=c=port1;

so avoid it , u have to use volatile keyword.

Answer / nikhil

Basically, it is a type qualifier.
a volatile data type is used at optimizer level.
Generally, in the embedded coding, When the optimizer is Set
on "favor size". The data type declaration as volatile
declares to compiler that the value of this data type can
change beyond the program flow(like interrupts.
Otherwise if the optimizer is enable, the program malfunctions.

Find MAXIMUM of three distinct integers using a single C statement

0 Answers  

---

how logic is used

0 Answers  

---

Write an implementation of “float stringToFloat(char *str).” The code should be simple, and not require more than the basic operators (if, for, math operators, etc.). • Assumptions • Don’t worry about overflow or underflow • Stop at the 1st invalid character and return the number you have converted till then, if the 1st character is invalid return 0 • Don’t worry about exponential (e.g. 1e10), instead you should treat ‘e’ as an invalid character • Write it like real code, e.g. do error checking • Go though the string only once • Examples • “1.23” should return 1.23 • “1a” should return 1 • “a”should return 0

6 Answers   Qualcomm,

---

void main() { int a[]={1,2,3,4,5},i; for(i=0;i<5;i++) printf("%d",a++); getch(); }

3 Answers  

---

Explain how are 16- and 32-bit numbers stored?

0 Answers  

---

How can I handle floating-point exceptions gracefully?

0 Answers  

---

How is a pointer variable declared?

0 Answers  

---

Write a program in C for showing working of different logical operator in C. Your program should guide users with proper message/menu on the console.

3 Answers   HCL,

---

can v write main() { main(); } Is it true?

6 Answers  

---

What is the difference between macros and inline functions?

5 Answers   Global Edge, L&T,

---

An integer that indentifies the position of a data item in a sequence of data items a) value b) number c) index d) all of the above

0 Answers  

---

how to generate sparse matrix in c

3 Answers  

---