What is the output of this line in C... int c = (a < b) ? b : a ;

Question

How it will be executed??

Answer 1

This is called a ternary operator.

int c -> we will assign a value to c

(a < b) ? -> the question mark indicates we will assign c to a value depending on the outcome of the preceeding boolean condition (in this case a < b)

The first value after the ? is what to assign to c if the boolean condition is true. The value after the : is what to assign if the boolean condition is false.

Read ternary operators like an if-else assignment in one line. So...

int c will be the value of b if (a < b) else it will the value of a

Also the same as

int c

if(a < b)
{
c = b;
}
else
{
c = a;
}

Hope that makes sense?