Flow-control structures: Difference between revisions

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=={{header|REXX}}==
=={{header|REXX}}==
===exit===
===exit===
The EXIT statement terminates the running (REXX) program and passes control to the invoking program (it could be the shell/host/supervisor program). If the invoking program is a REXX program, it also is terminated.
The EXIT statement terminates the running (REXX) program and passes control to the invoking program (it could be the shell/host/supervisor program).
⚫
If an expression is coded, it normally is used to set the RESULT (if a REXX program) or return code (also called RetCode, RC, completion code, or other such names).


Some operating systems require the expression to be a whole number within a certain range (often with a no expression or a [null] expression is usually taken to mean a return code of '''0''').
⚫
If an expression is coded, it normally is used to set the return code (also called return code, completion code, or other such names).


Some operating systems require the expression to be a whole number (often with a no expression or a [null] expression is usually taken to mean a return code of 0).
If the expression is a number, it is normalized to the current NUMERIC DIGITS.
<lang rexx>exit
<lang rexx>exit


exit expression</lang>
exit expression</lang>

===return===
===return===
The RETURN statement terminates the running (REXX) program and passes control to the invoking program (it could be the shell/host/supervisor program). If the invoking program isn't a REXX program, the RETURN statement acts like an EXIT.
The RETURN statement terminates the running (REXX) program and passes control to the invoking program (it could be the shell/host/supervisor program). If the invoking program isn't a REXX program, the RETURN statement acts like an EXIT.
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