Control Flow Statements


Statements that direct the flow of program execution.

Transferring Statements
Statements that transfer control to another part of a program.
Branching Statements
Statements that execute one of a number of code branches.
Looping Statements
Statements that execute code repeatedly.

Transferring Statements
GOTO
Transfers execution to another point in code defined by a text label.
GOSUB
Temporarily transfers execution to another point in code, defined by a text label.
ON GOTO
Transfers execution to one of a number of points in code defined by text labels, based on the value of an expression.
ON GOSUB
Temporarily transfers execution to one of a number of points in code defined by text labels, based on the value of an expression.
RETURN
Returns from a call using Gosub or from a procedure returning a value.
EXIT SUB, EXIT FUNCTION, EXIT OPERATOR,
EXIT CONSTRUCTOR, EXIT DESTRUCTOR and EXIT PROPERTY
Prematurely leaves a procedure code block.

Branching Statements
IF..END IF
Executes a block of statements if a condition is met.
..ELSE IF..
Executes a block of code if a condition is met and all previous conditions weren't met.
..ELSE..
Executes a block of code if all previous conditions weren't met.
SELECT..END SELECT
Executes one of a number of statement blocks using a set of conditions.
..CASE..
Executes a block of code if a condition is met.
..CASE ELSE..
Executes a block of code if all previous conditions weren't met.

Intra-branch control
EXIT SELECT
Prematurely breaks out of a SELECT..END SELECT statement.
Looping Statements
WHILE..WEND
Executes a block of statements while a condition is met.
FOR..NEXT
Executes a block of statements while an iterator is less than or greater than an expression.
DO..LOOP
Executes a block of statements while or until a condition is met.

Intra-loop control
CONTINUE WHILE, CONTINUE FOR and CONTINUE DO
Prematurely re-enters a loop.
EXIT WHILE, EXIT FOR and EXIT DO
Prematurely breaks out of a loop.
 


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