Advanced Control Flow

The `do` Loop

Sometimes you want to execute the body of a loop at least once and perform the loop test after the body was executed.

The do/while loop serves that purpose.

do
{
   statements
}
while (condition);

Example:

do
{
   xold = xnew;
   xnew = (xold + a / xold) / 2;
}
while (fabs(xnew - xold) > EPSILON);