The for statement starts by initializing the variables used in the conditional expression, testing the conditional expression, then executing the loop’s statements if the condition is true (non-zero). It then increments the variables used in the conditional expression, tests the conditional expression, then executes the loop’s statements if the condition is true (non-zero). It continues in this pattern until the value of the conditional expression is false (zero).
Currently, you must include all three expressions in a for loop.
for (init; condition; loop) init = initial condition
{ condition = conditional expression
do these commands; loop = loop expression
}
Because ODL, unlike C, does not allow null statements,
you must have an expression for each of the three components within
the parentheses. You cannot, for example, have a for loop
expression statement such as:
for (; i<5 ; i++)
Also, you must list at least one command to perform within the loop (in addition to the loop expression). You cannot, for example, put this:
for (i=0; i<10; i++);
Since there is no command preceding the semicolon, that would be a null (command) statement as well.
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