Answers for "* operator in c"

c ? operator

/* The expression a ? b : c evaluates to b if the value of a is true, 
 * and otherwise to c
 */

// These tests are equivalent :

if (a > b) {
    result = x;
}
else {
    result = y;
}

// and

result = a > b ? x : y;

C logical operators

1. && (AND) is true when both the conditions are true

    “1 and 0” is evaluated as false

    “0 and 0” is evaluated as false

    “1 and 1” is evaluated as true

2. || (OR) is true when at least one of the conditions is true. (1 or 0 = 1)(1 or 1 = 1)

3. ! returns true if given false and false if given true.

    !(3==3) evaluates to false

    !(3>30) evaluates to true

c++ .* operator

The .* operator is used to dereference pointers to class members.

c ? operator

? : Conditional Expression operator
If Condition is true ? then value X : otherwise value Y

y = x==0 ? 0 : y/x

c |= operator

// | is the binary "or" operator
// a |= b is equivalent to a = a|b

#include <stdio.h>

int main() {
   int a = 10;  // 00001010 in binary
   int b = 6;   // 00000110 in binary

   printf("Result : %dn", a |= b);
   // Result is 14 which is OOOO111O in binary

   return 0;
}