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Chapter 1h - Program Control : Do While Loops |
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Do While Loops
A do while loop
is a while loop
where the condition is evaluated at the end so the statements
in the body are executed at least once. The do
while loop is constructed as
follows;
do
{
BODY
} while( CONDITION );
The body is executed as long as the condition is True. Here
are 2 examples. In the first one, we are initializing the
variables in and array. In the second one, we are counting the
number of bits that are 1 in a variable.
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Example #1 |
Example #2 |
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#define MAX_X 10
int x;
int x_array[MAX_X];
x = 0;
do
{
x_array[x]
= 0;
x++;
} while( x<MAX_X ); |
int x;
int y;
int z;
x = 1;
y = 0;
do
{
if( z
& x) == x )
{
y++;
}
x
<<= 1;
} while( x!=0 ); |
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